answers: 1950
context: dispatched to Lebanon as part of Operation Blue Bat in response to the crisis there. Marines returned to Cuba from 1959 to 1960 to protect Americans during the Cuban Revolution. 5,000 Marines were sent to Thailand on 17 May 1962 to support the government's struggles against Communists until withdrawn on 30 July. Marines also returned to Haiti for Operation Power Pack on 28 April 1965. Originally sent to evacuate Americans in the midst of fighting between forces loyal to assassinated dictator Rafael Trujillo and the Dominican Revolutionary Party supporting Juan Bosch, President Lyndon B. Johnson expanded the intervention to prevent </s> South Korea (a.k.a. the Republic of Korea, ROK) had the second-largest contingent of foreign troops in South Vietnam after the United States. In November 1961, President Park Chung-hee proposed South Korean participation in the war to John F. Kennedy, but Kennedy disagreed as they were not SEATO treaty members. On 1 May 1964, Lyndon Johnson agreed to permit South Korean participation under the Many-Flags Program in return for monetary compensation. The first South Korean troops began arriving in 1964 and large combat formations began arriving a year later. The ROK Marine Corps dispatched their 2nd Marine Brigade, while the ROK </s> the United States and Great Britain recognized the French-backed State of Vietnam in Saigon, led by former Emperor Bảo Đại, as the legitimate Vietnamese government. The outbreak of the Korean War in June 1950 convinced many Washington policymakers that the war in Indochina was an example of communist expansionism directed by the Soviet Union. Military advisors from the People's Republic of China (PRC) began assisting the Viet Minh in July 1950. PRC weapons, expertise, and laborers transformed the Viet Minh from a guerrilla force into a regular army. In September 1950, the United States created a Military Assistance and Advisory
question: when did us start sending troops to vietnam