WW2 (World War II)

World War II (1939-1945) was a global conflict involving major powers divided into the Allies and Axis. It was sparked by aggressive expansion, notably Germany under Hitler, Japan in Asia, and Italy. The war resulted in massive destruction, loss of millions of lives, and the Holocaust—the genocide of six million Jews. It ended with the defeat of the Axis, the use of atomic bombs by the US on Japan, and significant geopolitical changes, including the rise of the United States and Soviet Union as superpowers. The war profoundly shaped the modern world, leading to the United Nations and efforts for international peace.