World War II Begins

World War II began on September 1, 1939, when Germany invaded Poland. This action led to the involvement of multiple countries around the world and marked the start of a global conflict.

The war involved many nations, divided into two main alliances: the Allies and the Axis. Fighting occurred in Europe, Africa, Asia, and the Pacific, and it involved large-scale military operations and significant civilian impact.

World War II had far-reaching political, social, and economic consequences, reshaping borders, governments, and international relations in the years that followed.