Nedelin joined the
Red Army in 1920, aged 18, and fought as a volunteer in the
Russian Civil War until its conclusion in 1923. The following year he joined the
Communist Party of the Soviet Union, and was conscripted back into the Red Army, becoming an artillery commander. From 1937 to 1939, Nedelin fought in the
Spanish Civil War as a
foreign volunteer for the
Republican Government, and the same year was appointed to command 13th Artillery Regiment in the Soviet Red Army. In 1940 he was appointed to command the artillery of 160th Rifle Division after returning from
Spain, and participated in the
Winter War until 1940. In 1941, after the Soviet Union entered
World War II, Nedelin was appointed commander of first 4th Anti-Tank Brigade, then the artillery of 18th Army, and then the artillery of 37th Army where he stayed until 1943, before being moved to command the artillery of 56th Army. In 1943, he was appointed Deputy Commanding Officer of the artillery of the
Northern Caucasian Front. From there Nedelin moved to command the V Artillery Corps, and then the artillery of the south-western front, and then the artillery of the 3rd Ukrainian Front where he stayed from 1943 to 1945, playing an especially important part in the capture of
Hungary. In 1945, Nedelin became assistant commanding officer and then the commanding officer of the artillery of the
Soviet Southern Group of Forces. In 1946, after the end of the Second World War, Nedelin became chief of staff of the chief artillery directorate of the
Soviet Army, and then chief of staff of artillery, and then deputy commander in chief of artillery. In 1948, he became head of the chief artillery directorate of the Soviet Army before becoming commander in chief of artillery from 1950 to 1952, and after a brief period as Deputy Minister of War, returned as commander in chief of artillery from 1953 to 1955. From 1955, he was Deputy Minister of Defence, and concurrently from 1959 commander in chief of the
Strategic Rocket Forces. == Space ==