Fact-checked by Grok 2 weeks ago

Unit cohesion

Unit cohesion is the multifaceted bonding among members of a unit, characterized by mutual , emotional , interpersonal , and collective commitment to shared tasks and objectives, which sustains group integrity under and enhances operational effectiveness. It encompasses primary bonds within small groups (such as peer and leader-subordinate ties) and secondary bonds to the broader organization and mission, distinguishing social (friendship and liking) from task (goal-directed dedication). Empirical analyses consistently link higher to superior unit , with meta-studies of dozens of investigations showing positive correlations, particularly for task cohesion, where cohesive units exhibit fewer errors, greater to demands, and sustained in prolonged operations. In environments, unit cohesion buffers against and , enabling groups to endure casualty rates exceeding 50% while maintaining effectiveness, as evidenced by historical and experimental data on primary . Longitudinal military studies further demonstrate its protective role against declines post-deployment, reducing avoidant coping and symptoms like PTSD through supportive networks, though effects vary by unit type and exposure levels. Defining characteristics include its dependence on stable membership and shared hardships, which foster trust over mere affinity; disruptions from high turnover or mismatched personnel can erode it, underscoring cohesion's fragility in volunteer forces prone to attrition. Key factors influencing cohesion—leadership quality, training rigor, group size, and homogeneity in values or experiences—highlight causal pathways rooted in repeated interactions and successes, rather than imposed policies alone. Controversies persist over its drivers, with some research prioritizing task commitment over social bonds for combat motivation, challenging earlier World War II-era emphases on camaraderie. Regarding diversity, peer-reviewed syntheses of service member surveys find no substantial long-term detriment to cohesion from demographic variances like sexual orientation, provided leadership enforces norms and shared threats unify the group, though transient strains occur without such mitigation. Strategies to cultivate it, such as unit rituals, sponsorship, and competitive training, draw from decades of doctrinal refinement to prioritize empirical outcomes over ideological assumptions.

Definition and Conceptual Foundations

Core Definition and Importance

Unit cohesion denotes the interpersonal bonds and mutual reliance among members of a military unit, functioning as the primary mechanism that sustains collective commitment during operations, particularly in high-stress environments. This bonding manifests as a "cement" that maintains relationships and fosters a sense of interdependence, enabling soldiers to prioritize group survival and mission success over individual self-preservation. Defined by former U.S. in the early , it involves soldiers uniting to endure shared hardships and execute tasks cohesively. Distinctions exist between social cohesion, which emphasizes emotional ties and personal loyalty among unit members, and task cohesion, which centers on coordinated efforts toward operational goals such as proficiency. Empirical analyses, including those from studies, indicate that primary —rooted in these bonds—drive soldiers' willingness to engage in , as individuals risk life for comrades rather than distant abstractions. The importance of unit cohesion lies in its direct correlation with enhanced military performance, including superior motivation, reduced casualties, and improved outcomes. Cohesive units demonstrate higher and readiness, with longitudinal data from deployed personnel showing that pre-deployment cohesion buffers against , , and anxiety, thereby preserving force sustainability. In operational contexts, such as assessments, cohesion underpins task execution amid turbulence, though debates persist on whether social bonds independently predict outcomes beyond task-oriented factors. Absent strong cohesion, units face elevated risks of fragmentation, lowered effectiveness, and increased reliance on external support.

Types and Dimensions of Cohesion

Horizontal cohesion denotes the interpersonal bonds and mutual trust among peers at the same rank or level within a military unit, fostering mutual support and cooperation during operations. Vertical cohesion, by contrast, encompasses the relationships between subordinates and leaders, characterized by confidence in command, obedience to directives, and perceived leadership competence. These two types form the core relational structure of unit cohesion, with horizontal bonds emphasizing peer solidarity and vertical bonds ensuring hierarchical alignment and directive efficacy. A further distinction lies between social cohesion and task cohesion as orthogonal dimensions. Social cohesion involves emotional ties such as , liking, and caring among unit members, which can enhance but may not directly correlate with . Task cohesion, however, reflects a shared to unit goals and success, often proving more predictive of and under . Empirical studies indicate that while social elements contribute to retention and , task-oriented cohesion drives instrumental behaviors like sustained effort in high-threat environments. The of Military Group , developed by Guy L. Siebold, expands these into a multidimensional framework incorporating horizontal and vertical bonds alongside organizational cohesion—identification with the immediate unit—and institutional cohesion, which measures attachment to the broader as an institution. Institutional cohesion, for instance, has been operationalized through surveys assessing in and to military values, revealing its role in long-term retention amid deployments. This model underscores as a networked structure spanning primary groups to systemic levels, with measurement via validated scales like factor-analyzed questionnaires from field exercises.
DimensionDescriptionKey Measurement Focus
HorizontalPeer bonds and mutual aidTrust and cooperation among equals
VerticalLeader-subordinate tiesConfidence in authority and guidance
SocialEmotional interpersonal linksLiking and closeness
TaskGoal-directed unityCommitment to objectives
Organizational/InstitutionalUnit and military identificationPride and loyalty to structure

Historical Development

Pre-Modern and Early Military Concepts

In tribal and clan-based warfare predominant before the rise of large states, unit cohesion arose primarily from networks and personal allegiances to , where fighters—often relatives or affine —shared risks and spoils, reinforced by customs of honor, , and collective survival against rival groups. This structure, evident in ancient Near Eastern pastoralists and early Indo-European warbands from around 2000 BCE, emphasized horizontal bonds among equals rather than hierarchical discipline, enabling small-scale raids but limiting scalability in prolonged conflicts due to fragile alliances beyond blood ties. The classical Greek phalanx, emerging around the 7th century BCE, represented an advance in engineered cohesion through formation tactics and social homogeneity. , typically middle-class citizens from the same , interlocked shields and spears in dense ranks of 8–16 deep, creating mechanical interdependence where a single man's retreat could collapse the line; this was supplemented by cultural norms of (heroic excellence) and shame avoidance, fostering mutual reliance among known comrades during battles like Marathon in 490 BCE. Scholarly analyses highlight how such citizen-militia systems prioritized vertical ties to the community over training, contributing to victories against numerically superior foes but proving vulnerable to more flexible tactics. Roman legions from the 3rd century BCE onward institutionalized cohesion via professional organization and repetitive drills, as detailed by in his Histories (ca. 150 BCE), where maniples of 120–160 men in checkerboard arrays allowed controlled advance and rotation of fresh troops, building confidence through shared engineering tasks like and marches of 20 miles daily. was enforced by centurions and punishments, while horizontal bonds formed in contubernia (8-man tent groups) enduring hardships, enabling sustained campaigns such as the (264–146 BCE); this task-oriented approach contrasted with Greek reliance on formation alone, yielding greater adaptability. In medieval (ca. 500–1500 CE), feudal armies derived cohesion from oaths of and regional affinities, with knights in lances fournies (small retinues of 5–25) bound by contractual loyalty to lords, though levies often lacked integration, leading to routs like Courtrai in 1302. Transition to early modern professionalism, seen in pike squares or Fähnlein by the , incorporated paid service, specialized skills from lifelong training, and regimental , enhancing reliability over ad hoc feudal summons.

20th-Century Evolution and Key Studies

The concept of unit cohesion gained prominence in military theory during through empirical observations of combat behavior, shifting emphasis from individual ideology or discipline to interpersonal bonds within small groups. S.L.A. Marshall's 1947 book , based on after-action interviews with U.S. units, reported that only 15-25% of soldiers fired their weapons in , attributing this reluctance to fear and isolation rather than cowardice; he argued that enhancing small-unit cohesion—via tactics like fire teams and buddy systems—could increase firing rates and combat effectiveness by fostering mutual reliance. Although later analyses, including by U.S. Army historians in the , questioned the accuracy of Marshall's methods and sample sizes, claiming or fabrication, his work influenced post-war training doctrines by highlighting the need to build horizontal ties to overcome psychological barriers in combat. Concurrently, sociological analyses of forces underscored primary as the core of sustained cohesion. In their 1948 study "Cohesion and Disintegration in the in ," Morris Janowitz and Edward Shils examined German prisoners and deserters, concluding that units maintained discipline and low surrender rates— even amid retreats and ideological disillusionment—primarily through loyalty to immediate comrades in squads and companies, rather than Nazi or charismatic . This primary challenged pre-war assumptions of ideological driving totalitarian armies, instead emphasizing social-psychological factors like shared hardship and ; the study drew on interrogations revealing that appeals to secondary groups (e.g., family or nation) were secondary to small-unit bonds, with disintegration occurring mainly when these were disrupted by casualties or replacements. Post-war U.S. research further formalized these insights, integrating them into broader studies. Samuel Stouffer's multi-volume The American Soldier (1949), based on surveys of over 500,000 U.S. troops, linked unit to reduced psychiatric breakdowns and higher , finding that soldiers in cohesive units reported stronger motivation from group expectations than from abstract or officer commands. This work, conducted under the U.S. Army's Research Branch, influenced Cold War-era doctrines by prioritizing stable small units over rapid rotations, a lesson reinforced by observations of cohesion erosion from individual replacements. By the Vietnam era, studies like Charles Moskos' 1970 ethnography of U.S. revealed declining due to short tours, ethnic tensions, and anti-war sentiment, prompting reforms such as the U.S. Army's 1970s emphasis on team-building in basic training to restore primary bonds. These developments marked a evolution from viewing as a byproduct of to a deliberate, measurable element of effectiveness, backed by longitudinal data showing its correlation with retention and performance.

Factors Shaping Unit Cohesion

Leadership, Training, and Shared Adversity

Effective fosters vertical cohesion, defined as bonds between leaders and subordinates, by providing emotional support, task guidance, and trust-building behaviors that enhance unit and performance. , including Griffith's 2002 analysis, demonstrates that leader emotional and task support directly predicts unit and soldiers' coping mechanisms under . A study of 72 platoons by et al. in 2003 found that higher leader skill ratings forecasted greater cohesion and operational effectiveness four to six weeks post-assessment. Meta-analytic evidence from Burke et al. (2006), reviewing 113 estimates, confirms that task-oriented —such as setting clear objectives—and person-oriented actions—like promoting interpersonal trust—reliably improve team and outcomes in settings. Intensive, interdependent training regimens build horizontal cohesion among peers by cultivating shared skills, mutual reliance, and collective efficacy. Realistic training simulations, such as live-fire exercises, generate interdependent challenges that reinforce task and group bonds, as evidenced in U.S. Army analyses of primary . approaches, which develop synchronized mental models among members, enhance coordination and , according to field experiments by Cannon-Bowers and Salas (1998) and subsequent reviews. Programs like the exemplify how proficiency-building exercises tied to prestige sustain motivation and solidarity during peacetime preparation. Shared adversity, encountered in rigorous training or , intensifies cohesion by compelling mutual dependence and forging enduring trust that overrides individual differences. observations by Grinker and Spiegel (1945) documented how collective exposure to threats amplified interpersonal bonds and unit loyalty. Van den Berg's 2009 study of troops under high-threat conditions revealed elevated task , operational readiness, and institutional identification as direct outcomes of adversity. Mullen and Copper's 1994 of cohesion- links, with a of r=0.43 for task , underscores how such experiences prioritize functional interdependence over mere affinity, though performance can reciprocally reinforce in longitudinal data.

Demographic Homogeneity and Value Alignment

Demographic homogeneity, encompassing similarities in , , , , and socioeconomic background, has been theorized to foster unit cohesion through mechanisms like reduced interpersonal friction and enhanced mutual understanding. Similarity-attraction principles suggest that shared demographic traits accelerate rapport-building and trust, particularly in high-stress environments where rapid bonding is essential. However, empirical studies in U.S. contexts, such as Siebold and Lindsay's of 60 platoons involving 955 soldiers, found no significant differences in cohesion ratings across racial or ethnic groups, with unit (ranging from 55% to 88% white composition) correlating minimally with cohesion (r = 0.06) or mission performance (r = 0.00). Meta-analyses of sociodemographic effects similarly report no net impact on team performance overall, though small negative associations emerge in contexts of high task interdependence and unbalanced subgroup sizes. Gender composition studies yield comparable ambiguity; Harrell and Miller's 1997 examination of U.S. Army units detected no direct cohesion variances tied to mix across services, attributing occasional tensions to perceptions of unequal rather than demographic mismatch itself. Rosen et al. (1999) observed potentially lower in -integrated units but linked this to confounding factors like company-level demographics and , not inherent . These findings, often derived from institutional research aligned with policies, predominantly reflect peacetime or data; scenarios may amplify homogeneity's benefits, as subgroup formation in diverse units can undermine collective trust under duress, per critiques of field study limitations. Value alignment, involving congruence in ethical, cultural, and operational priorities among unit members, bolsters both social and task by reinforcing and goal commitment. Shared adherence to military values—such as , , and —cultivates and mutual reliance, with empirical evidence indicating that units reporting higher value congruence exhibit elevated and . For instance, Reserve studies link stronger perceived team , rooted in aligned values, to improved psychological outcomes and retention. Demographic homogeneity often facilitates this alignment by minimizing value divergences stemming from disparate cultural backgrounds, though training can mitigate gaps in heterogeneous groups; misalignment, conversely, risks factionalism, as evidenced by historical cases where clashing subgroup norms eroded performance. Cohesion research underscores that while instrumental factors like dominate, value consensus provides a foundational causal layer for enduring bonds, independent of demographics alone.

Empirical Research Findings

Classic and Meta-Analytic Evidence

One of the foundational studies on unit cohesion emerged from analyses of the German . In their 1948 paper, Edward A. Shils and Morris Janowitz examined interrogations of approximately 150 prisoners of war and concluded that the army's cohesion persisted primarily due to primary group loyalties—bonds among small units of peers and immediate superiors—rather than ideological commitment to , which eroded late in the war. This work, based on empirical data from frontline defections and surrenders, challenged views emphasizing and highlighted how sustained discipline until overwhelmed by material shortages and . S.L.A. Marshall's 1947 study, "," provided observational evidence from after-action interviews with U.S. units in and the Pacific, estimating that only 15-25% of soldiers fired their weapons in combat despite ample ammunition. Marshall attributed this to insufficient small-unit cohesion, arguing that soldiers withheld fire absent direct mutual reliance on buddies, influencing post-war U.S. Army reforms in squad-level training to foster such bonds. Samuel A. Stouffer et al.'s "The American Soldier" (1949), drawing on surveys of over 500,000 U.S. troops, corroborated cohesion's role in and adjustment, finding primary group attachments stronger in combat units and predictive of willingness to endure hardship, though moderated by leadership quality and distance from the front line. Meta-analytic syntheses have quantified the cohesion-performance link across studies, including contexts. Mullen and Copper's 1994 meta-analysis of 49 empirical studies reported a modest overall (r = 0.14) between and group , with stronger effects (r = 0.33) under high task interdependence, where members rely directly on each other, and at the rather than level. Task —shared commitment to objectives—emerged as more predictive than social —interpersonal liking—consistent with demands for coordinated action. Beal et al.'s 2003 reexamination of cohesion-performance data, incorporating temporal moderators like pre- versus post-task measurement, affirmed a positive (average r ≈ 0.20), though attenuated by methodological artifacts such as reliance on perceptual rather than performance metrics. In military-specific reviews, MacCoun et al. (2006) aggregated post-World War II evidence, including the above classics, to conclude that both task and social cohesion contribute to effectiveness, with causal inferences supported by training interventions enhancing bonds and subsequent outcomes, albeit with correlations not implying universality absent enabling factors like homogeneity and stability. These analyses underscore cohesion's empirical robustness while noting limitations in generalizing from lab or non-combat settings to high-stakes warfare.

Combat and Longitudinal Studies

Combat studies have consistently demonstrated that unit cohesion, particularly horizontal bonds among peers, serves as a critical buffer against psychological disintegration and enhances fighting resilience under fire. In analyses of German units, primary group loyalties—rooted in interpersonal trust rather than ideological commitment—were found to sustain combat motivation even amid defeat, preventing mass surrenders observed in less cohesive formations. Similarly, field research on Israeli combat units during the Al-Aqsa Intifada (2000–2005) revealed that high cohesion levels correlated with sustained motivation and lower rates of non-combat losses, with cohesive squads exhibiting greater willingness to endure hardship and execute missions despite elevated risks. These findings align with U.S. military observations from deployments, where units with strong peer cohesion reported fewer instances of performance degradation, though some analyses prioritize task-oriented cohesion—driven by training and —over purely social ties as the primary driver of effectiveness. Longitudinal research further substantiates cohesion's protective role against post-deployment sequelae, tracking units from pre-deployment through reintegration. A of 14 such studies in contexts identified cohesion at the unit level as a consistent mitigator of PTSD symptoms, depressive disorders, and following exposure, with effect sizes indicating reduced symptom severity by up to 20–30% in high-cohesion groups. For instance, U.S. data from post-Iraq/Afghanistan cohorts showed that sustained peer bonds buffered the impact of traumatic events, lowering rates during the first year post-deployment compared to low-cohesion units. Vertical cohesion, involving leader-subordinate ties, exhibited mixed results, sometimes exacerbating misuse as a coping mechanism in stressed units, highlighting the need to distinguish cohesion types in predictive models. STARRS longitudinal surveys (2011–2016) validated scales measuring these dynamics, confirming cohesion's prospective link to , with baseline high scores predicting 15–25% lower service utilization over 12–36 months. Empirical caveats persist: while archives link to lower rates (e.g., <5% psychiatric evacuations in cohesive WWII platoons versus 20% in fragmented ones), causality is inferred from observational data, with confounds like selection effects and training quality complicating attributions. Longitudinal designs mitigate some biases but often rely on self-reports, potentially inflating 's variance due to retrospective bias; nonetheless, multi-wave assessments consistently affirm its incremental validity beyond individual factors like prior trauma exposure. These studies underscore 's domain-specific potency in high-stakes environments, where it fosters mutual reliance essential for collective survival and mission success.

Policy Controversies and Debates

Integration of Women and Racial Minorities

The integration of racial minorities into U.S. military units, formalized by President Truman's Executive Order 9981 on July 26, 1948, initially faced resistance but ultimately enhanced unit cohesion and effectiveness, particularly during the Korean War. Battlefield necessities led to the mixing of Black and white soldiers in combat units starting in 1951, resulting in improved leadership, command structures, and overall fighting spirit, as segregated units had suffered from manpower shortages and morale issues. Army studies such as Project CLEAR concluded that integration raised Black soldiers' morale without diminishing white soldiers' motivation, while reducing racial tensions and logistical inefficiencies associated with separate units. Empirical evidence from the war indicates that integrated units experienced fewer casualties relative to segregated ones and demonstrated higher resilience under fire, attributing these outcomes to shared adversity fostering bonds irrespective of race when performance standards were uniformly applied. Subsequent analyses affirm that merit-based racial integration, without quotas or lowered standards, minimized cohesion disruptions and promoted long-term value alignment among service members. For instance, equal-contact policies in integrated training environments improved intergroup attitudes among minorities and bolstered perceptions of fairness, though unequal power dynamics occasionally provoked backlash from majority groups. Critics of rapid desegregation noted initial frictions in culturally heterogeneous units, such as during Vietnam-era turbulence, but longitudinal data show these were transient and outweighed by gains in collective efficacy when leadership emphasized mission over identity. Modern concerns about racial diversity mandates persist, with some studies linking perceived inequities in disciplinary processes to eroded trust and unit solidarity, yet historical precedents underscore that organic, standards-driven inclusion—rather than enforced demographic targets—best preserves cohesion. The 2013 decision to open all combat roles to women sparked debates over its implications for unit cohesion, with empirical studies revealing persistent challenges tied to physiological differences and interpersonal dynamics. A 2015 U.S. Marine Corps experiment found that mixed-gender infantry teams underperformed all-male teams in 69% of evaluated ground combat tasks, including speed, lethality, and casualty evacuation, while participants reported decreased unit cohesion and morale post-integration training. RAND analyses of special operations forces integration highlight widespread perceptions among male personnel—80-83% anticipating declines in task and social cohesion—stemming from concerns over competence, trust erosion, and behavioral changes like protective instincts or fraternization risks, though these remain speculative absent full-scale combat data. A 2024 causal study using staggered Army integration data showed no objective harm to men's retention or promotions but a 5% drop in perceived workplace quality and cohesion, particularly in units led by female officers, suggesting subjective strains from perceived inequities in capability or leadership. Proponents argue that rigorous, gender-neutral standards mitigate cohesion risks, citing small overall effects on readiness in non-combat roles and potential resilience benefits from diverse perspectives. However, evidence of higher female injury rates (up to 2-3 times male rates in training) and deployability issues (e.g., pregnancy absences averaging 6 months) fuels skepticism, as adjusted standards to boost female participation can breed resentment and undermine task cohesion by signaling unequal burdens. International cases, like Israel's limited female combat integration, preserve cohesion through role segregation and high thresholds, contrasting U.S. policies criticized for prioritizing numerical diversity over empirical validation. These tensions reflect causal realities: while attitudinal barriers to racial integration yielded to shared hardship, sex-based differences in strength and endurance pose ongoing hurdles, with source biases in pro-integration academia often understating performance gaps to align with equity goals.

Sexual Orientation, Gender Identity, and Diversity Mandates

The repeal of the "Don't Ask, Don't Tell" (DADT) policy in September 2011, which had barred openly homosexual and bisexual individuals from U.S. military service since 1994, sparked debates over its effects on . Comprehensive Department of Defense surveys of over 108,000 active-duty personnel conducted in the year following repeal reported no widespread disruptions to morale, discipline, or cohesion, with 92% of respondents noting that their units were able to adjust effectively to the change. Similarly, a RAND Corporation analysis of foreign militaries permitting open homosexual service, such as those in Israel, Canada, and the United Kingdom, found no evidence of reduced unit cohesion or performance attributable to sexual orientation policies alone. However, critics, including military scholars, have argued that such assessments over-rely on self-reported surveys and task-oriented metrics, potentially underestimating disruptions to social cohesion—interpersonal bonds essential for combat endurance—as evidenced by historical data from homogeneous units showing higher voluntary retention under stress. Policies on gender identity, particularly transgender service, have undergone multiple reversals, intensifying cohesion concerns. In 2016, the Obama administration lifted the longstanding ban on transgender individuals serving openly, estimating fewer than 0.6% of personnel would be affected and projecting minimal readiness impacts based on analogous integrations. A 2019 peer-reviewed survey of 486 active-duty cisgender personnel found broad support for transgender inclusion, with no self-reported negative effects on unit dynamics among those exposed. Yet, subsequent data revealed elevated mental health risks among transgender service members, including twice the general population rate of military enlistment but higher suicide attempt rates and deployability issues due to medical requirements like hormone therapy and surgeries, prompting the Trump administration's 2018 policy to restrict service for those with gender dysphoria diagnoses to preserve cohesion and medical fitness. The Biden administration reversed this in 2021, but empirical studies remain limited to perceptions rather than longitudinal combat outcomes, with conservative-leaning respondents in surveys more likely to anticipate cohesion erosion from privacy and facility-sharing conflicts in close-quarters environments. Diversity, equity, and inclusion (DEI) mandates, expanded significantly in the U.S. military from 2021 onward under executive orders emphasizing demographic representation, have faced scrutiny for prioritizing identity-based training over warfighting unity. The Department of Defense allocated over 6 million man-hours annually to DEI programs by 2023, including mandatory sessions on systemic bias and equity, yet congressional inquiries found no peer-reviewed evidence linking these efforts to improved cohesion or effectiveness, with some analyses attributing recruitment shortfalls—such as the Army missing targets by 15,000 in 2022—to perceptions of ideological overreach alienating potential volunteers. Investigations revealed a sprawling DEI bureaucracy across branches, with Pentagon spending exceeding $100 million yearly on consultants and curricula that critics argue foster grievance narratives, potentially fracturing the value alignment central to small-unit bonds as per meta-analyses of cohesive forces. While proponents cite anecdotal alliance benefits, empirical data from business analogs show demographic diversity correlating with lower interpersonal trust in high-stakes teams absent strong shared norms, raising causal questions about mandates that mandate heterogeneity in environments where homogeneity has historically buffered against attrition. Sources advancing DEI efficacy often stem from advocacy-aligned institutions, contrasting with operational critiques from serving personnel highlighting diverted focus from lethality.

Effects on Military Performance

High unit cohesion correlates with superior combat effectiveness, as evidenced by empirical research demonstrating that cohesive teams maintain higher motivation, coordination, and resilience under fire compared to fragmented ones. A meta-analysis of 27 studies on group performance found that cohesive groups significantly outperformed non-cohesive counterparts, with effect sizes indicating stronger results in interdependent tasks akin to military operations. In combat contexts, analyses of U.S. Army units during the Iraq War revealed that task cohesion—encompassing shared commitment to mission goals and leadership bonds—predicted successful engagements and reduced operational failures, independent of social bonding alone. Similarly, historical examinations of World War II units, including German Wehrmacht formations, attributed prolonged combat tenacity to primary group loyalties fostering mutual reliance and sacrifice, enabling effectiveness despite material disadvantages. Task cohesion emerges as the primary driver of these performance links, with vertical (leader-subordinate) and horizontal (peer) elements enhancing decision-making speed and adaptability in dynamic environments. Longitudinal studies of deployed personnel confirm that units scoring high on cohesion metrics exhibit fewer breakdowns in chain of command and better tactical execution, as measured by after-action reviews and kill-to-loss ratios. Meta-analytic syntheses further substantiate this, aggregating data from military and civilian high-stakes groups to show consistent positive associations between cohesion and outcomes like error reduction and goal attainment under stress. Critiques noting limited independent effects of purely social cohesion underscore the causal primacy of instrumental bonds tied to shared purpose over mere interpersonal affinity. Regarding discipline, strong unit cohesion enforces normative compliance through peer accountability and internalized standards, correlating with lower rates of misconduct and higher operational readiness. Research on British Army reserves indicated that elevated cohesion levels predicted superior morale and discipline adherence, manifesting in reduced absenteeism and sustained training compliance during high-tempo operations. U.S. military assessments link cohesive structures to diminished insubordination and desertion risks, as mutual trust incentivizes self-policing and rapid correction of deviations, evidenced by lower disciplinary incidents in high-cohesion platoons tracked via personnel records. These patterns hold across contexts, with post-deployment data showing cohesive units experiencing fewer behavioral health issues that could erode discipline, such as substance abuse or rule-breaking, thereby preserving force integrity. Empirical models posit that cohesion buffers against stress-induced lapses, promoting a culture where violations threaten group survival and elicit collective enforcement.

Morale, Retention, and Psychological Resilience

High levels of unit cohesion contribute to elevated morale in military units by fostering interpersonal bonds and collective efficacy, which sustain motivation and willingness to endure hardships. Empirical analyses indicate that morale, intertwined with cohesion, serves as a primary mechanism for maintaining psychological functioning during deployments, as service members in cohesive groups report greater satisfaction with unit dynamics and reduced interpersonal friction. Cohesion mitigates demoralizing factors such as isolation or distrust, with longitudinal data from combat-exposed personnel showing that pre-deployment cohesion predicts sustained morale over time. Unit cohesion positively influences retention rates by enhancing soldiers' commitment to the group and institution, as members perceive continued service as an extension of valued relationships. Research on treatment-seeking military personnel with PTSD symptoms documents that higher perceived cohesion correlates with greater reenlistment propensity, independent of individual trauma exposure. This association holds in operational contexts where cohesive units experience lower voluntary attrition, though direct causal pathways remain understudied compared to morale effects. Psychological resilience in cohesive units manifests as reduced vulnerability to post-traumatic stress disorder (PTSD), major depressive episodes, and suicidal ideation following combat exposure. A prospective study of U.S. Army soldiers found that higher pre-deployment was associated with 28% lower adjusted odds (AOR = 0.72) of PTSD or other mental disorders at follow-up waves. Similarly, a VA analysis of nearly 800 National Guard and Reserve troops post-Iraq/Afghanistan deployment revealed that those reporting strong cohesion exhibited greater resilience to mental health sequelae, including lower PTSD symptom severity. Cohesion buffers these outcomes by promoting adaptive coping strategies over avoidance, with evidence from deployed personnel indicating independent protective effects against traumatic stress responses. These findings underscore cohesion's role in fostering resilience through shared support networks, though effects may vary by deployment intensity and unit leadership quality.

Measurement and Contemporary Challenges

Methods and Validity Issues

Unit cohesion in units is predominantly assessed through self-report questionnaires that evaluate dimensions such as horizontal bonds among peers, vertical ties between leaders and subordinates, and occasionally institutional or task-oriented cohesion. These instruments typically employ Likert-scale items to gauge perceptions of mutual support, shared commitment, and collective resilience. For example, the Unit Cohesion Index, developed for U.S. Army applications, comprises multiple subscales subjected to psychometric scrutiny for internal consistency and construct validity via factor analysis and correlations with unit performance indicators. The Vertical Unit Cohesion Scale from the Army Study to Assess Risk and Resilience in Servicemembers (Army STARRS), validated in a 2024 longitudinal analysis of over 20,000 soldiers, demonstrates strong unidimensional factor structure, high reliability (Cronbach's alpha >0.90), and measurement invariance across time points, demographics, and deployment statuses, enabling reliable tracking of leader-subordinate dynamics. Other tools, such as the Combat Cohesion Questionnaire with 79 items targeting bonding types, and frameworks like the Standard Model of Group Cohesion, extend assessments to include institutional loyalty. Supplementary methods include aggregating self-reports to unit-level metrics, observational assessments during training, or indirect proxies like retention statistics and infraction rates, though these are rarer due to operational constraints and lack of direct linkage to psychological bonds. Longitudinal designs, as reviewed in 18 peer-reviewed studies, facilitate examination of cohesion changes over time but often combine social and task measures inconsistently across samples. Key validity challenges stem from self-report reliance, which invites as respondents, embedded in hierarchical cultures emphasizing unity, may overstate to avoid perceived disloyalty or repercussions. Cross-sectional hinders causal attribution, conflating with confounders like quality or training intensity, while aggregation to group levels risks masking intra-unit variances from demographic subgroups. validation remains elusive, with most from non-operational settings failing to capture stress-induced shifts, and psychometric tests showing domain-specificity that limits or inter-service generalizability. These issues underscore the need for multi-method , including behavioral indicators, to mitigate subjectivity and enhance for performance outcomes.

Recent Policy Shifts and Research Gaps

In January 2025, following the of President , an titled "Prioritizing Military Excellence and Readiness" directed the Department of Defense to emphasize troop readiness, lethality, , and uniformity, effectively curtailing prior (DEI) mandates that had expanded under the Biden administration. This shift reversed policies promoting race- and gender-based quotas and training, which critics argued diverted resources from core warfighting skills and potentially undermined unit bonding through enforced ideological . By May 2025, a Defense Department confirmed the department-wide elimination of DEI programs, including the cessation of mandatory training hours that had exceeded 6 million man-hours annually without corresponding empirical validation of cohesion benefits. On October 1, 2025, Defense Secretary announced directives ending diversity initiatives, imposing uniform physical and entry standards across personnel, and redirecting focus to a "warrior ethos" to restore merit-based and operational effectiveness. These measures addressed prior expansions, such as the 2021-2023 DEI strategic plans that integrated equity metrics into promotions and unit assignments, amid reports of recruitment shortfalls and lowered standards correlating with those efforts. Hegseth's reforms explicitly prioritized shared experiences and uniformity to bolster team resilience, echoing classic cohesion research while rejecting unproven diversity-driven interventions. Despite these policy pivots, significant research gaps persist in assessing integration's causal effects on . Longitudinal studies tracking metrics—such as , interpersonal bonds, and retention—post-integration remain sparse, with most limited to short-term surveys or self-reported data prone to . A 2024 analysis of integration in U.S. Army units found moderate risks to male soldiers' and readiness but lacked controls for pre-existing baselines or combat-specific outcomes. Empirical voids also exist regarding DEI's net impact on non-combat units, where data on alliances or is anecdotal rather than rigorously measured. Critically, few peer-reviewed studies isolate DEI policies' effects from variables like training rigor or deployment cycles, with pro-diversity research often relying on correlational claims of " " benefits absent causal validation against erosion. This gap hinders evaluation, as institutional sources promoting —frequently from or advocacy-aligned entities—exhibit methodological preferences for affective over instrumental dimensions, potentially overlooking and metrics central to warfighting. Future research requires randomized or quasi-experimental designs with verifiable performance to bridge these deficiencies, particularly in evaluating post-2025 reforms' restoration of traditional drivers.

References

  1. [1]
    The Essence of Military Group Cohesion - Guy L. Siebold, 2007
    Military group cohesion is based on social integration, including primary (peer/leader) and secondary (organizational/institutional) bonding. Peer bonding is ...
  2. [2]
    [PDF] Unit Cohesion and Military Performance1 - UC Berkeley Law
    To our knowledge, only two studies provide direct empirical tests of a possible association between unit cohesion and the presence of known gay men and lesbians.
  3. [3]
    Cohesion in the Army: A Primary Group Analysis
    ... unit cohesion. We discussed six separate but related strategies: Invoke personal sacrifice and personal investment toward group endeavors. Individuals feel ...
  4. [4]
    Fear, Courage, and Cohesion | Proceedings - U.S. Naval Institute
    Highly cohesive units were able to sustain effective combat even with phys' ical casualty levels exceeding 50%. Unit sustainability in combat was demonstrated ...
  5. [5]
    Longitudinal studies on cohesion in a military context – A systematic ...
    Studying Army National Guard and reserve personnel after deployment, unit cohesion was associated with a reduction in avoidant coping. The reduction, in turn, ...
  6. [6]
    Does Social Cohesion Determine Motivation in Combat? An Old ...
    Based on a new Army War College study of unit cohesion in the Iraq War, Wong et al. argue that successful unit performance is determined by social cohesion (the ...Missing: effects studies
  7. [7]
    [PDF] Chapter 1 MORALE AND COHESION IN MILITARY PSYCHIATRY
    unit. The definition of military unit cohesion was pre- sented earlier in the Chapter: The bonding together of soldiers in such a way as to sustain their ...
  8. [8]
    Unit Cohesion and the Military Mission - Sexual Orientation
    A group with high task cohesion is composed of members who share a common goal and who are motivated to coordinate their efforts as a team to achieve that goal.
  9. [9]
    Building team cohesion in military units - HPRC-online.org
    Sep 6, 2022 · Social cohesion—the nature of the bonds between team members—is a measure of military performance, combat motivation, and social support.
  10. [10]
    [PDF] Unit Cohesion: A Prerequisite for Combat Effectiveness - DTIC
    The aims of this paper are to highlight the key elements of cohesiveness, to examine the present turbulence problems confronting the US Army combat units (armor ...
  11. [11]
    Combat and Operational Stress Control and Military Leaders
    Cohesive units fight better, suffer fewer casualties, train better, require less support, provide members with a higher quality of life, and support the well- ...
  12. [12]
    [PDF] Does Social Cohesion Determine Motivation in Combat?
    Based on a new Army War College study of unit cohesion in the Iraq War, Wong et al. argue that successful unit performance is determined by social cohesion ...
  13. [13]
    [PDF] VERTICAL AND HORIZONTAL COHESION: COMBAT ...
    Horizontal cohesion is the caring among soldiers and provision of mutual support. Vertical cohesion is best described as leader-led support."' In this post-cold ...
  14. [14]
    Is cohesion an individual- or unit-level buffer for combat-exposed ...
    One potential buffering factor is unit cohesion, or the “shared identity and mutually supportive relationships” that develop among members of the same military ...
  15. [15]
    Commentary on the Standard Model of Military Group Cohesion
    Jan 27, 2024 · This current article describes major conceptual and measurement efforts leading up to the development of the Model, critiques and expansions of the Model,
  16. [16]
    Measurements for the institutional cohesion dimension of the ... - NIH
    This article studies how we can theorize and measure a so far understudied dimensions of cohesion: bonding with military institutions.
  17. [17]
    [PDF] Development of the Platoon Cohesion Index - DTIC
    Siebold, Guy L. (1987b). "Conceptualization and Definitions of. Military Unit Cohesiveness." Paper presented at the 95th. Annual Convention of the American ...
  18. [18]
    [PDF] Tribal Identity and Conflicts with Tribes - DTIC
    Mar 15, 2008 · We have an incredible history of tribal wars going back thousands of years; they offer useful lessons. Alexander the Great,. Lawrence of ...<|control11|><|separator|>
  19. [19]
    Unit cohesion and warfare in the ancient world: military and social ...
    Apr 24, 2025 · Task cohesion is the way the goal of completing a task or mission binds a group together. Social cohesion is the force provided by positive ...Missing: armed | Show results with:armed
  20. [20]
    Polybius, “The Roman Army” - The History Muse
    In the following account, Polybius tells how the commanders enforced obedience and fostered heroism. As soon as the morning appears, those who have made the ...
  21. [21]
    Caste, Skill, and Training: The Evolution of Cohesion in European ...
    Jul 2, 2014 · This essay proposes to examine the structure of medieval Europe's military systems – and the factors that held medieval armed forces together in battle and on ...Missing: legions | Show results with:legions
  22. [22]
    Men Against Fire - University of Oklahoma Press
    540-day returnsSLA "Slam" Marshall was a veteran of World War I and a combat historian during World War II. He startled the military and civilian world in 1947.Missing: unit cohesion
  23. [23]
    Cohesion and Disintegration in the Wehrmacht in World War II
    Cohesion and Disintegration in the Wehrmacht in. World War II. BY EDWARD A. SHILS AND MORRIS JANOWITZ. The title of this article may suggest to some that it is ...
  24. [24]
    Cohesion and Disintegration in the Wehrmacht in World War II - jstor
    The Wehrmacht maintained integrity through retreats, maintained high stability, and its unity was sustained by the group structure, despite the breaking of ...
  25. [25]
    [PDF] Living on the Edge: Cohesion and Contingency Operations - DTIC
    The landmark study by Samuel Stouffer, et al, The American. Soldier, offered extensive insights into the social psychology of. WWII soldiers. They concluded ...
  26. [26]
    [PDF] Unit Cohesion and the Impact of DADT - Air University
    This finding was accepted in the study of military cohesion because it not only reflected a sound empirical conclusion but it was also consonant with the ...
  27. [27]
    Cohesion and Disintegration in the Wehrmacht in World War II
    This article studies the Wehrmacht's social structure, morale, and Nazi/Allied attempts to break it down, focusing on the infantryman's primary group.
  28. [28]
    Marshall, 1947 [2000]. Men against Fire | Daniel Paul O'Donnell
    Jan 7, 2024 · The other reason why the book is famous is for its focus on small unit cohesion. One of the things that Marshall argues is that modern ...
  29. [29]
    [PDF] Art of War Papers Lessons in Unit Cohesion - Army University Press
    A unit-based system differs in that soldiers are assigned for a more extended period of service and do not typically move, especially during their first ...<|separator|>
  30. [30]
    [PDF] The American Soldier, Volume 1: Adjustment During Army Life
    Jan 17, 2021 · a cohesive unit , with a definite purpose shared b y a ll . Such a ... Stouffer and Leland C. DeVinney . The design of the comparative.
  31. [31]
    The American Soldier: An Assessment, Several Wars Later - jstor
    Studies prior to and during World War II emphasized the positive effects of group cohesion upon morale and performance (du Picq, 1958;. Stouffer et al., 1949; ...
  32. [32]
    A Meta-Analysis of Cohesion and Performance: Effects of Level of ...
    Aug 10, 2025 · This study extends previous work reviewing the cohesion-performance relationship by using meta-analytic techniques to assess the effects of ...
  33. [33]
    A reexamination of the cohesion–performance relationship meta ...
    The present meta-analysis sought to reanalyze moderators of the cohesion–performance relationship, and investigate other methodological issues.
  34. [34]
    Cohesion during Military OperationsA Field Study on Combat Units ...
    Aug 5, 2025 · Abstract. Military leaders and social scientists often regard unit cohesion as the key element in combat motivation and fighting resilience.<|separator|>
  35. [35]
    Assessing the psychometric properties of the Army STARRS' vertical ...
    Jun 28, 2024 · Vertical unit cohesion (support from leaders in the unit and other higher-ranking positions) may be of universal importance to service members ...Missing: affecting | Show results with:affecting
  36. [36]
    Is cohesion within military units associated with post-deployment ...
    Jul 1, 2016 · Unit cohesion was unrelated to PTSD symptoms or a depression screen. Abstract. Purpose. Prior studies suggest that cohesion among members of ...
  37. [37]
    Executive Order 9981 and Racial Integration
    Two Army studies, the G-1 Investigation and Project CLEAR, both concluded that integration raised Black morale without lowering White morale, that integrated ...
  38. [38]
    The Impact of Racial Integration on the Combat Effectiveness ... - DTIC
    First, the integration of African Americans in Army combat units during the Korean War resulted in improvements in cohesion, leadership and command, fighting ...Missing: minorities | Show results with:minorities
  39. [39]
    [PDF] Power, Race, and Social Cohesion in the U.S. Military - Salma Mousa
    May 3, 2025 · Equal contact improves intergroup attitudes among minorities, while unequal contact sparks backlash effects, driven by a more negative ...
  40. [40]
    [PDF] Unit Cohesion and Morale in Combat: Survival in a Culturally ... - DTIC
    49 These factors had a major impact on their performance, cohesion, and morale in combat. Prior to the U.S. entrance into and during World War II, the War ...
  41. [41]
    [PDF] Internal Review Team on Racial Disparities in the Investigative and ...
    Jun 8, 2023 · Racial disparities in these highly visible processes affect unit cohesion, perceptions of fairness, and trust in the system.
  42. [42]
    [PDF] U. S. Marine Corps Research Findings - Center for Military Readiness
    Research showed women are slower and weaker in technical and tactical aspects. All-male teams outperformed mixed gender units in 69% of ground combat tasks.
  43. [43]
    Considerations for Integrating Women into Closed Occupations in ...
    Dec 16, 2015 · This report assesses potential challenges to the integration of women into SOF for unit cohesion and provides analytical support in validating SOF occupational ...
  44. [44]
    [PDF] The Effects of Gender Integration on Men: Evidence from the U.S. ...
    Dec 2, 2024 · We exploit the staggered integration of women into combat units to estimate the causal effects of the introduction of female colleagues on men' ...
  45. [45]
    New Opportunities for Military Women: Effects Upon ... - RAND
    Gender integration has had only small effects on the matters that count most: defense readiness, unit cohesion, and morale.
  46. [46]
    [PDF] An Assessment of DADT Repeal's Impact on Military Readiness
    Prior to the repeal of “don't ask, don't tell” (DADT) on September 20, 2011, many observers predicted that allowing lesbian, gay and bisexual (LGB) troops to ...Missing: empirical | Show results with:empirical
  47. [47]
    Sexual Orientation and U.S. Personnel Policy Revisited - RAND
    Dec 23, 2010 · They report no change in unit cohesion or performance subsequent to adoption of a nondiscrimination policy regarding gay men and lesbians.
  48. [48]
    The Implications of Allowing Transgender Personnel to Serve Openly
    Jun 30, 2016 · A RAND study identified the health care needs of the transgender population and transgender service members in particular.
  49. [49]
    [PDF] Support for Transgender Military Service from Active Duty United ...
    For example, a study published just over 1 year after the repeal of DADT, found no overall negative impact from the repeal on morale, retention, unit cohesion, ...
  50. [50]
    A Descriptive Study of Transgender Active Duty Service Members in ...
    Notably, transgender persons appear twice as likely as members of the general population to serve in the military; 20% of respondents from the National ...
  51. [51]
    A Descriptive Study of Transgender Active Duty Service Members in ...
    Sep 2, 2020 · Preliminary analyses indicated that transfemales in the military may be at higher risk for mental health concerns, compared with transmales.
  52. [52]
    Taking Social Cohesion to Task: Perceptions of Transgender Military ...
    Oct 23, 2019 · We find that conservatives are more likely to believe that the inclusion of transgender soldiers will negatively impact cohesion and undermine unit ...
  53. [53]
    [PDF] diversity, equity, and inclusion: impacts to the department of defense ...
    Mar 23, 2023 · any empirical evidence, any studies at all that defends a single man-hour over 6 million man-hours of DEI training in the United. States ...
  54. [54]
    New Study Details 'Vast DEI Bureaucracy' in Pentagon, Service ...
    Jun 26, 2024 · A year-long examination of DEI training in the military identifies millions of wasted taxpayer dollars are being spent to create a culture of “race and sex- ...
  55. [55]
    Cohesion Is an Enduring Warfighting Advantage - U.S. Naval Institute
    A 2022 RAND study on diversity and military effectiveness identifies “cross-cultural competence” as a critical enabler of alliances and partnerships.
  56. [56]
    What Happened When DEI Came to the Military? - The Free Press
    Jan 28, 2025 · A Free Press investigation reveals the extraordinary extent to which our armed forces put diversity over readiness.
  57. [57]
    DEI Is Distracting Our Military From Its Primary Task
    Jul 19, 2024 · Under the Biden administration, military spending is increasingly focused on diversity, equity and inclusion efforts, which waste money and divide troops.Missing: cohesion empirical
  58. [58]
    [PDF] Examining the role of unit cohesion as a moderator of the ...
    Therefore, the positive effects of unit cohesion may translate into enhanced performance for the military. Limitations. Though a strength of the present ...<|control11|><|separator|>
  59. [59]
    [PDF] Cohesion in the US Military - DTIC
    We agree that leader behavior is a critical element in developing unit cohesion, but we believe it is a mistake to ignore other factors that also play key roles ...
  60. [60]
    Morale and cohesion as contributors to resilience. - APA PsycNet
    We argue that the major reason for the perceived importance of morale and unit cohesion for the psychological functioning of service members is that these ...Missing: retention | Show results with:retention
  61. [61]
    Prospective associations of perceived unit cohesion with post ... - NIH
    Conclusions: Soldiers who reported strong unit cohesion before deployment had lower risk of post-deployment mental disorders and suicidal ideation. Awareness ...
  62. [62]
    The impact of social support, unit cohesion, and trait resilience on ...
    Higher levels of perceived unit cohesion are typically associated with greater retention rates in the military, higher levels of physical ...
  63. [63]
    Prospective associations of perceived unit cohesion with ...
    Jan 29, 2019 · Higher perceived unit cohesion at T0 was associated with lower risk of PTSD, MDE, GAD, AUD/SUD, and suicidal ideation at T2 or T3 (AORs = 0.72 ...
  64. [64]
    Unit cohesion could be key to PTSD resiliency - Research.va.gov
    Sep 12, 2014 · A VA study of nearly 800 National Guard and Reserve troops found that soldiers reporting higher levels of unit cohesion tended to be more resilient to mental ...
  65. [65]
    Resilience During War: Better Unit Cohesion and Reductions ... - NIH
    The results are consistent with the hypothesis that higher unit cohesion may mitigate increases in avoidant coping in military personnel after a combat ...
  66. [66]
    Resilience during war: Better unit cohesion and reductions in ...
    Resilience during war: Better unit cohesion and reductions in avoidant coping are associated with better mental health function after combat deployment.Missing: effects retention studies<|separator|>
  67. [67]
    [PDF] Further Examination of the Unit Cohesion Index. - DTIC
    Purpose: The purpose of this study is to continue the psychometric examination of the Unit Cohesion Index, a questionnaire to measure the level of unit cohesion.
  68. [68]
    [PDF] Development of the Combat Platoon Cohesion Questionnaire - DTIC
    This 79-item instrument measured cohesion in terms of horizontal bonding among peers, vertical bonding between leaders and their subordinates, and ...Missing: forces | Show results with:forces
  69. [69]
    Measuring the Cohesion of Military Communities - Sage Journals
    A principal components analysis yields two relatively stable and independent dimensions from the 50 Likert items we constructed.
  70. [70]
    Is Cohesion Within Military Units Associated with Post-Deployment ...
    Aug 9, 2025 · Discussion: Limitations include self-report measurement and cross-sectional nature of the data. ... group-level measures of unit cohesion ...
  71. [71]
    Prioritizing Military Excellence and Readiness - The White House
    Jan 27, 2025 · It is the policy of the United States Government to establish high standards for troop readiness, lethality, cohesion, honesty, humility, uniformity, and ...Missing: diversity | Show results with:diversity
  72. [72]
    Task Force Validates Successful DEI Elimination Throughout DOD
    May 22, 2025 · A Defense Department task force has confirmed DOD's successful implementation of a departmentwide directive from Defense Secretary Pete Hegseth ...Missing: cohesion 2020-2025<|separator|>
  73. [73]
    U.S. Ends Military Diversity Initiatives, Imposes Uniform Standards
    Oct 1, 2025 · Hegseth declared an end to diversity initiatives and gender or race-based quotas, requiring uniform entry requirements and physical standards ...
  74. [74]
    The Power of Stability - Army University Press
    Sep 29, 2025 · The camaraderie built through shared hardships and triumphs is a powerful force that enhances unit cohesion and effectiveness. ADP 3-0, ...<|separator|>
  75. [75]
    Local engagement and U.S. military attitudes toward gender ...
    Aug 26, 2024 · This article argues that deployed experiences create opportunities for soldiers to observe women's engagement with host communities, particularly local women.
  76. [76]
    Don't Exclude Women from Combat Units Because of Cohesion
    Nov 26, 2014 · As long as women are competent and well-trained, they therefore do not effect unit cohesion negatively. Unit cohesion – an issue of leadership.
  77. [77]
    [PDF] This report assesses challenges for unit cohesion from integrating ...
    Dec 3, 2015 · Although many findings from civilian studies are important for military units, cohesion in groups of soldiers is often distinct from ...<|control11|><|separator|>
  78. [78]
    Contextualizing inclusion: Developing a framework and measure for ...
    To summarize, the U.S. military, believes leveraging the full-range of diversity is critical to maintaining a ready, innovative force capable of meeting current ...