History of Vietnam since 1945 unstable as no government could keep power for long. There were more coups, often more than one every year. The Communist-run Viet Cong expanded their operation and scored some significant military victories during this period. In 1965, US President Lyndon Johnson sent troops to South Vietnam to secure the country and started to bomb North Vietnam, assuming that if South Vietnam fell to the Communists, other countries in the Southeast Asia would follow, in accordance with the domino theory. Other US allies, such as Australia, New Zealand, South Korea, Thailand, the Philippines, and Taiwan also sent troops to South Vietnam.
1965 in the Vietnam War United States and its allies, which, will, in conjunction with current actions, lead in due time to successful accomplishment of US aims and objectives." What came to be called "A Program for the Pacification and Long-Term Development of South Vietnam" (PROVN) would be completed on 1 March 1966. President Johnson requested an additional appropriation of $700 million for the Vietnam War during the remainder of the fiscal year. The request was approved by Congress 2 days later. Johnson indicated that he might have to request additional funds. Soldiers from the 173rd Airborne Brigade arrived in Vietnam. The brigade would be