World War II

World War II was a global conflict that lasted from 1939 to 1945, involving most of the world's nations and resulting in the deaths of 60 to 75 million people. The war was fought between two main coalitions: the Allies, which consisted of the United States, the United Kingdom, and the Soviet Union, and the Axis powers, which included Germany, Italy, and Japan. The war was sparked by the aggressive expansion of the Axis powers, and it ultimately led to the defeat of the Axis and the emergence of the United States and the Soviet Union as superpowers.