By the time Hitler declared war on the Soviet Union in 1941, he knew that his military machine was running out of fuel. In response, he launched Operation Blau, a campaign designed to protect Nazi oilfields in Rumania while securing new ones in the Caucasus. All that stood in the way was Stalingrad.Most accounts of the Battle of Stalingrad have focused on the dismal fate of the German Army. Joel Hayward now chronicles Luftwaffe operations during that campaign, focusing on Hitler's use of the air force as a tactical rather than strategic weapon in close support of ground forces. He vividly details the Luftwaffe's key role as "flying artillery," showing that the army relied on Luftwaffe support to a far greater degree than has been previously revealed and that its successes in the East occurred largely because of the effectiveness of that support.