World war 2 was a collection of many regional conflicts that all interacted with each other strategically and politically.
In the Allies the United Kingdom,Led by Winston Churchill, and the United States, led by Franklin Roosevelt. In the Axis was Japan,led by Hideki Tojo, and Germany, led by Adolf Hitler.
World War 2 was fought because of the axis aggression. The cause of the war could be traced back 20 years ago.Hitler wanted to rise to power.
World War 2 started on July 7 1941. It started when japan invaded China.when Japan occupied the northeastern region of china known as Manchuria.
World War 2 took place around the world.Most combat to place in Europe,East Asia,and islands in the pacific countries such as Poland,china ,Russia,and Germany saw their territorial directly involved in the war and they suffer terribly.
The post world war 2 saw a decline to Continental power.the successful detonation of the atomic bomb during operation trinity of only lead to the destruction of Hiroshima and Nagasaki in japan but also marked the start of the atomic age.