The United States played a significant role in air combat over Europe during World War II.

Indeed, the United States played a crucial role in air combat over Europe during World War II, primarily through the United States Army Air Forces (USAAF). One of the most significant contributions was the long-range strategic bombing campaign against Nazi Germany, which aimed to destroy German military industrial capacity and undermine the morale of the civilian population. The campaign involved thousands of aircraft, such as the B-17 Flying Fortress and the B-24 Liberator, flying daylight bombing missions over enemy territory. These missions faced stiff opposition from the Luftwaffe, Germany's air force, leading to many dogfights between escorting fighters like the P-51 Mustang and enemy fighters.

The USAAF also supported ground operations during critical battles such as the Normandy invasion (D-Day) by attacking German transport infrastructure and providing air cover. Overall, the continuous pressure from the air helped to weaken the Nazi war machine, contributing significantly to the Allied victory in Europe.