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.
1961 in the Vietnam War government throughout the Vietnam War, but had only a limited influence on the Kennedy and Johnson Administrations. The report of a high-level study group headed by Undersecretary of Defense Roswell Gilpatric said that "South Vietnam is nearing the decisive phase of its battle for survival" and that the situation is "critical but not hopeless." It recommended that the United States show "our friends, the Vietnamese, and our foes, the Viet Cong, that come what may, the US intends to win this battle." A cease fire was declared in Laos between communist rebels (the Pathet Lao) and government troops. President Kennedy