Cuban Missile Crisis established a naval blockade on October 22 to prevent further missiles from reaching Cuba; Oval Office tapes during the crisis revealed that Kennedy had also put the blockade in place as an attempt to provoke Soviet-backed forces in Berlin as well. The US announced it would not permit offensive weapons to be delivered to Cuba and demanded that the weapons already in Cuba be dismantled and returned to the Soviet Union. After several days of tense negotiations, an agreement was reached between US President John F. Kennedy and Khrushchev. Publicly, the Soviets would dismantle their offensive weapons in Cuba and
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