USA HISTORY

Detailed explanation-1: -In 1970, a joint U.S-South Vietnamese operation invaded Cambodia, hoping to wipe out DRV supply bases there. The South Vietnamese then led their own invasion of Laos, which was pushed back by North Vietnam.

Detailed explanation-2: -In March 1969, in an effort to disrupt North Vietnamese supply lines, President Nixon secretly ordered the US Air Force to conduct an extensive bombing campaign in eastern Cambodia.

Detailed explanation-3: -The PAVN refused and, at the request of the Khmer Rouge, promptly invaded Cambodia in force. Between March and June 1970, the North Vietnamese captured most of the northeastern third of the country in engagements with the Cambodian army.

Detailed explanation-4: -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-5: -Incursion. Operations moved into the open May 1, 1970, with an “incursion” into Cambodia by 15, 000 US and South Vietnamese ground troops to destroy North Vietnamese and Viet Cong bases.