World War II was a collection of many regional conflicts that all interacted with each other, strategically and politically. It was also a war within many wars like the European War and the Pacific war.
There were many countries involved in the war and they were called the Allies and Axis. The Allies had the United Kingdom, The USA, and Russia. The Axis powers were Japan, Germany, and Italy.
WW2 was fought because of the axis aggression.The end of the WW1 ,the Treaty of Versailles failed as an instrument to maintain peace as it seemingly served the agenda of depriving germany of her status as a soverign nation.Italy fought with the side of the victors of WW1 because they believed she deserved much more territorial gains than she recieved and this is the reason WW2 was fought.
I believe WW2 started on July 7, 1937 when the first of the regional wars within WW2 started.On July 7,1937 Japan invaded China when some scholars actually dated the invasion all the way back to 1931, when Japan occupied the Northeastern region of China known as Manchuria, though they are a minorty as officially war was not declared between CHina and Japan until 1937.
the WW2 take place from all around the world.It takes place from Europe East, Asia, and the island from the Pacific Ocean.But others take place from far away as Madagascar, and the Aleutian Islands. Some of the war take countries like Poland, China, Russia, And Germany they saw their territories directly involved in war and they suffered terribly. The countries like The U.S and Canda were relatively far from the actions.
The legacy of the WW2 were carpet bombing campaigns targeted civilian targets as much as military ones, while starvation and disease claimed a stunning number of lives. Atrocities also added misery; the Holocaust alone killed 11 million people, half of which were Jews.