Cuban Missile Crisis and that while the Kennedy Administration had agreed not to invade Cuba, they were only in process of determining Khrushchev's offer to withdraw from Turkey. When former US President Harry Truman called President Kennedy the day of Khrushchev's offer, the President informed him that his Administration had rejected the Soviet leader's offer to withdraw missiles from Turkey and was planning on using the Soviet setback in Cuba to escalate tensions in Berlin. The US continued the blockade; in the following days, aerial reconnaissance proved that the Soviets were making progress in removing the missile systems. The 42 missiles and their
Cuban Missile Crisis missiles stood on ready alert, some of which targeted Cuba, and Air Defense Command (ADC) redeployed 161 nuclear-armed interceptors to 16 dispersal fields within nine hours, with one third maintaining 15-minute alert status. Twenty-three nuclear-armed B-52s were sent to orbit points within striking distance of the Soviet Union so that it would believe that the US was serious. Jack J. Catton later estimated that about 80 percent of SAC's planes were ready for launch during the crisis; David A. Burchinal recalled that, by contrast: By October 22, Tactical Air Command (TAC) had 511 fighters plus supporting tankers and reconnaissance aircraft