Ain al-Hilweh
Ain al-Hilweh is the largest Palestinian refugee camp in Lebanon, located approximately 3 kilometers southeast of Sidon in the south of the country and established in 1948 to house Palestinians displaced by the war accompanying Israel's founding.[1][2] The camp spans less than a square mile but accommodates over 50,000 registered Palestinian refugees, along with unregistered residents and Syrian arrivals, resulting in severe overcrowding, poverty, and inadequate infrastructure amid restricted rights for Palestinians in Lebanon.[3][4] Excluded from Lebanese state sovereignty, with security forces barred from entry, Ain al-Hilweh functions as a self-governed enclave dominated by competing Palestinian factions—ranging from Fatah and other PLO groups to Islamist militants like Jund al-Sham—fostering a volatile environment prone to factional strife and serving as a base for armed operations.[5][6] Recurrent clashes, including deadly 2023 confrontations between Fatah-led forces and Salafist extremists that killed at least 30 and displaced thousands, underscore the camp's chronic instability and its spillover risks to surrounding areas, despite intermittent disarmament efforts.[3][7]Geography and Demographics
Location and Physical Layout
Ain al-Hilweh is situated approximately 3 kilometers southeast of Sidon in southern Lebanon.[8][6] Originally established as a compact refugee settlement, the camp has undergone significant informal expansion beyond its initial boundaries due to unregulated construction, now encompassing an area of about 1.5 square kilometers including adjacent informal areas.[6][9] This growth has resulted in a highly congested spatial organization that complicates centralized governance efforts by creating a labyrinthine environment resistant to external monitoring.[10] The camp is encircled by a security perimeter featuring a concrete wall constructed in phases beginning in November 2016, along with watchtowers and entry checkpoints maintained by Lebanese Armed Forces to limit the ingress and egress of militants and prevent spillover of violence into surrounding communities.[11][12][13] These measures establish a buffer zone around the camp's four main entrances, where Lebanese security personnel exercise control, though internal access remains restricted to Palestinian factions.[6] Internally, Ain al-Hilweh consists of dense, unplanned urban sprawl characterized by narrow alleys, multi-story concrete buildings often built atop one another, and inadequate infrastructure for sewage, water, and electricity distribution.[10][2] This configuration, driven by overcrowding and lack of regulatory oversight, facilitates insurgent tactics such as ambushes in constricted passages while exacerbating sanitation deficiencies and fire hazards due to flammable materials and limited access for emergency services.[10][2] The resulting urban density undermines prospects for stable administration by enabling factional entrenchment and impeding unified law enforcement.[14]