How much do you know about World War II?
World War II was the largest and most revolutionary military conflict in history from 1939 to 1945. This war has made huge changes throughout international politics, economy, technology, and society. -Cause and background Although the causes of the World War II are diverse, it is generally a decisive role in the instability of the Versailles system after World War I, economic instability due to the Great Depression, and the injuries of strong nationalism and the national socialist movement. In particular, the unfairness and lack of equity of the Versailles system amplified the complaints of Germany and Italy. -The beginning of war In September 1939, Nazi Germany invaded Poland and began World War II. Later, Britain and France declared war on Germany in response to Germany's attack on Poland. -Main veterans and wires World War II was mainly divided into battles between the Allies (mostly the United Kingdom, the Soviet Union, the United States, China, etc.) and the Axis (Nazi Germa...