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 "no" difference... The military balance wasn't changed. I didn't believe it then, and I don't believe it now." The EXCOMM agreed that the missiles would affect the "political" balance. Kennedy had explicitly promised the American people less than a month before the crisis that "if Cuba should possess a capacity to carry out offensive actions against the United States... the United States would act." Also, credibility among US allies and people would be damaged if the Soviet Union appeared to redress the strategic balance by placing missiles in Cuba. Kennedy explained after the crisis that "it would have politically changed