During a test of the R-16 ICBM on October 24, 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 the missiles while in Cuba.