The Workers' and Peasants' Red Army, often referred by its shortened name as the Red Army, was the army and air force of the Russian Soviet Republic and, from 1922, the Soviet Union. The army was established in January 1918 by a decree of the Council of People's Commissars to oppose the military forces of the new nation's adversaries during the Russian Civil War, especially the various groups collectively known as the White Army. In February 1946, the Red Army (which embodied the main component of the Soviet Armed Forces alongside the Soviet Navy) was renamed the "Soviet Army". Following the dissolution of the Soviet Union it was split between the post-Soviet states, with its bulk becoming the Russian Ground Forces, commonly considered to be the successor of the Soviet Army.
The Red Army provided the largest ground force in the Allied victory in the European theatre of World War II, and its invasion of Manchuria assisted the unconditional surrender of Japan. During its operations on the Eastern Front, it accounted for 75–80% of the casualties that the Wehrmacht and Waffen-SS suffered during the war, and ultimately captured the German capital, Berlin.