The German Luftwaffe was the aerial warfare branch of the German Wehrmacht during World War II. Some synonyms for the German Luftwaffe are the German Air Force, the Luftwaffe and the German Aviation Corps. These terms refer to the same organization which played a significant role in the war, particularly in the Battle of Britain and the Eastern Front. The Luftwaffe used advanced aircraft technology and air tactics to provide air support to ground troops in combat. Although it had significant resources, it suffered heavy losses during the war, and was ultimately defeated by the allied forces.