カンボジア・ベトナム戦争
Lee opposed the Vietnamese invasion of Cambodia in 1978. The Singapore government organised an international campaign to condemn Vietnam and provided aid to the Khmer Rouge which was fighting against Vietnamese occupation during the Cambodian–Vietnamese War from 1978 to 1989. In his memoirs, Lee recounted that in 1982, "Singapore gave the first few hundreds of several batches of AK-47 rifles, hand grenades, ammunition and communication equipment" to the Khmer Rouge resistance forces.