WWII

World War II was a global conflict that lasted from 1939 to 1945, involving many of the world's nations divided into two main groups: the Allies and the Axis. It began when Germany, led by Adolf Hitler, invaded Poland. The war saw widespread battles across Europe, Asia, and the Pacific, including significant events like the Holocaust and the use of atomic bombs on Japan. Ultimately, it resulted in the defeat of the Axis powers (Germany, Italy, Japan) and led to significant political, social, and economic changes worldwide, including the establishment of the United Nations and the beginning of the Cold War.