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,
History of Cuba the embargo did not extend to other countries, and Cuba traded with most European, Asian and Latin American countries and especially Canada. However, the United States later pressured other nations and American companies with foreign subsidiaries to restrict trade with Cuba. Also, the Helms–Burton Act of 1996 makes it very difficult for foreign companies doing business with Cuba to also do business in the United States, forcing them to choose between the two. In April 1961, less than four months into the Kennedy administration, the Central Intelligence Agency (CIA) executed a plan that had been developed under the Eisenhower administration.