28 February 1979

“We are opposed to both the Vietnamese invasion of Cambodia and the Chinese invasion of Vietnam. We call for the immediate withdrawal of Vietnamese troops from Cambodia and Chinese troops from Vietnam,” says the United States State Department.

In retaliation for toppling the Khmer Rouge and occupying Cambodia, China invades Vietnam with about 200,000 troops, supported by tanks in what China describes as a “counterattack” in response to Vietnamese border attacks. https://t.co/9FvghbvRxe

Prince Sihanouk tells a US diplomat: “I reject China’s idea of me heading a Pol Pot government”, & outlines his preferred solution for Cambodia: A Geneva type conference, which sponsors supervised free elections, in which Pol Pot, Heng Samrin & he could compete.