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 was a medium-range ballistic missile, capable of carrying a thermonuclear warhead. It was a single-stage, road-transportable, surface-launched, storable liquid propellant fueled missile that could deliver a megaton-class nuclear weapon. The Soviets were building nine sites—six for R-12 medium-range missiles (NATO designation "SS-4 Sandal") with an effective range of and three for R-14 intermediate-range ballistic missiles (NATO designation "SS-5 Skean") with a maximum range of . On October 7, Cuban President Osvaldo Dorticós Torrado spoke at the UN General Assembly: "If... we are attacked, we will defend ourselves. I repeat, we have sufficient means with which to defend ourselves; we have