Combatants Khmer Republic, United States, Republic of Vietnam Khmer Rouge, Democratic Republic of Vietnam, National Liberation Front of South Vietnam (NLF) Strength ~250,000 FANK troops ~100,000 (60,000) Khmer Rouge Casualties ~600,000 dead, 1,000,000+ wounded[1] The Cambodian Civil War was a conflict that pitted... Flag ratio: 2:3 The national flag of Cambodia () was readopted in 1993, after elections returned the monarchy to rule. ... // Background Even before the war in Vietnam had ended, the relationship between the Khmer Rouge and Vietnam was at a low. ...