Brigade 2506 Brigade 2506 Brigade 2506 (Brigada Asalto 2506) was the name given to a CIA-sponsored group of Cuban exiles formed in 1960 to attempt the military overthrow of the Cuban government headed by Fidel Castro. It carried out the abortive Bay of Pigs Invasion landings in Cuba on 17 April 1961. In May 1960, the CIA began to recruit anti-Castro Cuban exiles in the Miami area. For most recruits, infantry training was carried out at a CIA-run base code-named "JMTrax" near Retalhuleu in the Sierra Madre on the Pacific coast of Guatemala. In November 1960, with Gregorio Aguilar Matteo spearheading training
CIA activities in Nicaragua government eventually grew stronger and British influence faded. Background Information and the Precipitation of the Contra Conflict In 1961, the Frente Sandinista de Liberacion Nacional (FSLN) was founded in Havana, Cuba. The development of the FSLN represented the merger of "Carlos Fonseca's Nicaraguan Patriotic Youth organization ... with Tomas Borge's Cuban-supported insurgent group." The FSLN remained a largely unsuccessful and marginal political movement until 1972, when an earthquake rocked the Nicaraguan capital, Managua. The Somoza government, which had assumed control of Nicaragua shortly following the withdrawal of United States military personnel in 1933, was seen to be profiteering from international