Cuba place on 14 April 1961. About 1,400 Cuban exiles disembarked at the Bay of Pigs, but failed in their attempt to overthrow Castro. In January 1962, Cuba was suspended from the Organization of American States (OAS), and later the same year the OAS started to impose sanctions against Cuba of similar nature to the US sanctions. The Cuban Missile Crisis occurred in October 1962. By 1963, Cuba was moving towards a full-fledged Communist system modeled on the USSR. During the 1970s, Fidel Castro dispatched tens of thousands of troops in support of Soviet-supported wars in Africa. He supported the MPLA
CIA activities in Angola Teng referred to an early conversation between Nixon and Mao Zedong regarding Angola. "We hope that through the work of both sides we can achieve a better situation there. The relatively complex problem is the involvement of South Africa. And I believe you are aware of the feelings of the black Africans toward South Africa." No CIA personnel were present, but this is mentioned in the context of setting US policy toward Angola, where CIA did have covert operations. United States Secretary of State Henry Kissinger replied, "We are prepared to push South Africa as soon as an alternative military