The term "Allied Air Forces" refers to the collective air power of the nations that fought together during major conflicts, particularly in World War I and World War II. These forces included pilots, aircraft, and support personnel from various countries, such as the United States, United Kingdom, and Soviet Union. Their primary goal was to achieve air superiority, conduct strategic bombing, and support ground troops. During World War II, the Allied Air Forces played a crucial role in key operations, including the D-Day invasion and the bombing campaigns over Germany. Coordination among the different nations was essential for successful missions, leading to the development of joint strategies and tactics that significantly impacted the outcome of the war.