The Azerbaijan Soviet Socialist Republic entered World War II with the Soviet Union after the German declaration of war on June 22, 1941. Azerbaijan's oilfields were enticing to the Germans due to the USSR's heavy dependency on Caucasus oil – setting the scene for German campaigns attempting to capture and seize the oilfields in Baku during the Battle of the Caucasus. Azerbaijan’s oil was very decisive for Soviet victory. More than 600,000 people from Azerbaijan were conscripted to the Workers’ and Peasants’ Red Army during World War II from 1941 to 1945.