Final answer:
The Allies, including the United States, the Soviet Union, and Britain, won World War II through strategic military actions, technological advancements, and the mobilization of resources.
Step-by-step explanation:
The Allies, consisting of the United States, the Soviet Union, and Britain, won World War II. They achieved victory through a combination of military strategies, advancements in technology, and the mobilization of their resources.
One key factor that led to the Allies' victory was the successful D-Day invasion of Normandy in 1944. This operation allowed the Allies to establish a foothold in Europe and eventually push back the Axis powers.
The Allies also benefited from technological advancements, such as the development of the atomic bomb, which led to Japan's surrender. Additionally, the United States' economic strength and industrial production played a significant role in supporting the war effort and ultimately contributed to the Allies' win.