The beginning of World War II (reasons, countries at war, nature of the war).

This war began on September 1, 1939. The cause of the war was the aggression of Nazi Germany and its allies, which was aimed at the rest of the world. The participants in the hostilities were: Germany, USA, Japan, USSR, France, Finland, England, Belgium, Holland, Canada, Australia, China, Romania, Hungary, Bulgaria, Greece, Argentina, Brazil, etc. Almost the whole world was on fire. The fighting took place in Africa, Europe and Asia. The war took place on land, in the air and at sea.