Operation 40 necessary some of your own members who were suspected of being foreign agents...We were concentrating strictly in Cuba at that particular time." The group sought to incite civil war in Cuba against the government of prime minister Fidel Castro. "In October 1960, they realize that this project has failed, and that is when Brigade 2506" was created, a CIA-sponsored group made up of 1,511 Cuban exiles who fought in the April 1961 Bay of Pigs Invasion. On 17 April 1961, Vicente Leon Leon, with other members of Operation 40, landed at the Bay of Pigs via the CIA-chartered freighter "Atlantico".
United States involvement in regime change Sarit. It also deployed the CIA-sponsored Police Aerial Reinforcement Unit (PARU) to operations within Laos. With the help of CIA front organization Air America to airlift war supplies and with other U.S. military assistance and covert aid from Thailand, General Phoumi Nosavan's forces captured Vientiane in November 1960. The CIA orchestrated a force composed of CIA-trained Cuban exiles to invade Cuba with support and equipment from the US military, in an attempt to overthrow the Cuban government of Fidel Castro. The invasion was launched in April 1961, three months after John F. Kennedy assumed the presidency in the United States.