Red Army is the name given to the Armed Forces of the Soviet Union after the disintegration of the Tsarist forces in 1917. "Red" refered to the shed blood of the working class. The Workers' and Peasants' Red Army was created by a decree of the Council of People's Commissars in 1918. Leon Trotsky, the Soviet Union's commissar for war from 1918 to 1924 is often regarded as its founder. By the end of World War II the Red Army numbered over 11 million officers and enlisted soldiers. After its victory over Nazi Germany the numbers were reduced to ca. 3 million.
In 1946 the word 'Red' was removed from the name of the Soviet armed forces.
see Red Army Faction for the German terrorist group