Timeline of United States military operations communist attack on a U.S. installation in central Vietnam, the United States escalated its participation in the war to a peak of 543,000 military personnel by April 1969. 1961: Cuba: The Bay of Pigs Invasion, known in Hispanic America as Invasión de Bahía de Cochinos (or Invasión de Playa Girón or Batalla de Girón), was an unsuccessful military invasion of Cuba undertaken by the CIA-sponsored paramilitary group Brigade 2506 on April 17, 1961. 1962: Thailand: The Third Marine Expeditionary Unit landed on May 17, 1962 to support that country during the threat of Communist pressure from outside; by July 30,
CIA activities in Nicaragua justified under the pretense that the 1984 Boland Amendment did not specify what constituted an 'agency involved in intelligence gathering' beyond that of the CIA or DOD. According to a memo by the Deputy Director of Intelligence, Nicaragua became a growing military force in the region. This was determined to be a growth too big for the apparent needs of the Nicaraguans. This lead the government to suspect such a growth. The concerns of Nicaragua growing as a communist hub in line with Cuba was growing stronger. The Deputy Director compared it to the struggle that metastasized in Vietnam. In