Who where the people who fought in World War 2?

World War II involved a vast array of countries and their military forces, primarily divided into two opposing alliances: the Allies and the Axis. The Allies included major powers such as the United States, the Soviet Union, the United Kingdom, China, and France, while the Axis powers were led by Germany, Italy, and Japan. Millions of soldiers and civilians from numerous nations participated in the conflict, which spanned multiple continents and involved significant battles on land, sea, and air. The war also saw the involvement of various resistance movements and colonial troops from occupied territories.