USA HISTORY

Detailed explanation-1: -In April 1970, US and South Vietnamese ground forces entered eastern Cambodia to attack Communist sanctuaries there. The Vietnamese Communists, meanwhile, moved deeper into Cambodia and began seizing large sections of the countryside for the Khmer Rouge, who accepted their help despite historical distrust of Vietnam.

Detailed explanation-2: -On April 30th of 1970, President Richard Nixon declared to a television audience that the American military troops, accompanied by the South Vietnamese People’s Army, were to invade Cambodia. The invasion was under the pretext of disrupting the North Vietnamese supply lines.

Detailed explanation-3: -Vietnam launched an invasion of Cambodia in late December 1978 to remove Pol Pot. Two million Cambodians had died at the hands of his Khmer Rouge regime and Pol Pot’s troops had conducted bloody cross-border raids into Vietnam, Cambodia’s historic enemy, massacring civilians and torching villages.