Defection
Defection is the act of abandoning or betraying allegiance to a group, organization, nation, or cooperative arrangement, typically by aligning with an adversary or pursuing individual self-interest over collective obligations.[1][2] In political and military contexts, it often involves individuals or units renouncing loyalty to their state or regime, frequently motivated by ideological disillusionment, pursuit of personal safety, or economic incentives, and can signal underlying regime instability or precipitate broader collapses, as observed in the Soviet Union's dissolution where subordinates defected en masse across multiple republics.[3][4] Such acts have historically provided defectors' new hosts with valuable intelligence and propaganda victories, exemplified by high-profile escapes from authoritarian systems during the Cold War. In game theory, particularly the Prisoner's Dilemma, defection represents the rational choice to prioritize personal payoff over mutual cooperation, leading to suboptimal collective outcomes despite incentives for restraint in repeated interactions.[5][6] While political defections carry connotations of betrayal in stable democracies—often critiqued as opportunistic party switches—they reveal causal pressures like repression or policy failures in less resilient systems, underscoring defection's role as a mechanism for exposing and eroding flawed governance structures.[7]