Cuban Project by late August, the Soviet military build-up in Cuba disgruntled the Kennedy administration. The fear of open military retaliation against the United States and Berlin for the US covert operations in Cuba slowed down the operation. By October, as the Cuban Missile Crisis heated up, President Kennedy demanded the cessation of Operation Mongoose. Operation Mongoose formally ceased its activities at the end of 1962. The first assassination plots began in the late summer of 1960, according to the Church Committee’s documentation. Some of the plots and ideas ranged from “poisoned pills, an exploding seashell, and a planned gift of a
Cuban Missile Crisis and Secretary-General of the Organization of American States, José Antonio Mora to brief them on the US intelligence and their proposed response. All were supportive of the US position, except Macmillan who advocated appeasement. Shortly before his speech, Kennedy called former President Dwight Eisenhower. Kennedy's conversation with the former President also revealed that the two were conspiring during the Cuban Missile Crisis. The two also anticipated that Khruschev would respond to the Western world in a matter that was similar to his response during the Suez Crisis and would possibly wind up trading off Berlin. On October 22 at 7:00