Foreign relations of Cuba needed oil. Relations between the countries deteriorated rapidly. In April 1961, following air attacks preparing for the Bay of Pigs Invasion by CIA-trained Cuban exiles, prime minister Fidel Castro declared Cuba to be a socialist republic, and moved quickly to develop the growing relations between Cuba and the Soviet Union. In 1962, Cuba was expelled from the Organization of American States. Shortly afterwards, many nations throughout Latin America broke ties with Cuba, leaving the island increasingly isolated in the region and dependent on Soviet trade and cooperation. Following the establishment of diplomatic ties, and after the Cuban missile crisis in
CIA activities in Hungary intervention...it was not permitted to send U.S. weapons in." In fact, the implication in the histories is that transferring arms was never seriously contemplated: "At this date no one had checked precisely on the exact location and nature of U.S. or other weapons available to CIA. This was done finally in early December" of 1956. Did a US-sponsored group play a part in the revolution? From the CS Histories, they did not. "Small psychological warfare and paramilitary units came into being in the early 1950s, (including the Hungarian National Council headed by Bela Varga), and occasional reconnaissance missions took place