The Role of Vietnam Militia and Self-Defence Force (Dân quân tự vệ) and Guerrilla (Du kích) in the Defense of the Southwestern Border (1975-1978)

Abstract

After national reunification in 1975, the Vietnam’s southwestern border became increasingly unstable as the Khmer Rouge regime in Cambodia pursued hostile policies, repeatedly violating Vietnam’s sovereignty and launching largescale attacks that caused severe human and material losses. In response, the Communist Party and State of Vietnam persisted in seeking peaceful solutions based on mutual respect for sovereignty, while firmly defending territorial integrity and mobilizing the strength of the entire population. Within this context, Militia and Self-Defence Force (Dân quân tự vệ) and Guerrilla force (Du kích) in Military Regions 5, 7, and 9 were rapidly strengthened in both quantity and quality, particularly in key border areas. During the war to defend the Fatherland on the southwestern border (1975–1978), these forces played a pivotal role: directly engaging in combat, coordinating effectively with regular army units, building interconnected defense systems, assisting with civilian evacuation, protecting localities, and consolidating the people’s war posture. Their contribution was crucial to safeguarding national territory, maintaining a secure rear, and stabilizing civilian life.