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
Strategic Missile Troops 1960, the test missile exploded on the pad, killing the first commander of the SRF, Chief Marshal of Artillery Mitrofan Ivanovich Nedelin. This disaster, the details of which were concealed for decades, became known as the Nedelin catastrophe. He was succeeded by Marshal of the Soviet Union Kirill Moskalenko, who in turn was succeeded quickly by Marshal Sergey Biryuzov. Under Marshal Вiryuzov the SRF deployed missiles to Cuba in 1962 as part of Operation Anadyr. 36 R-12 intermediate range ballistic missiles were sent to Cuba, initiating the Cuban Missile Crisis. The 43rd Guards Missile Division of 43rd Rocket Army manned