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 cryptonym plan concerned Cuba. Occasionally the special code names come close to the nerve, as did MONGOOSE." A secret joint program between the Mexico City CIA station and the Mexican secret police to wiretap the Soviet and Cuban embassies was code-named ENVOY. Some cryptonyms relate to more than one subject, e.g., a group of people. In this case, the basic cryptonym, e.g., LICOZY, will designate the whole group, while each group member is designated by a sequence number, e.g., LICOZY/3, which can also be written LICOZY-3, or just L-3. DT, ER, FJ, HB*, HO, HT, JU, KM, KO, QK, SC, SE,