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'''World War II''' was a global conflict fought between the [[Allies|Allied]] powers including the [[United States]], the [[Soviet Union]], the [[United Kingdom]], [[France]], Australia, Canada and many other nations and the [[Axis (WWII)|Axis]] powers (mainly [[Nazism|Nazi]] [[Germany]], [[Fascism|Fascist]] [[Italy]], and Imperial [[Japan]]). The war is usually considered to have started on September 1, 1939 with the invasion of [[Poland]] by Nazi Germany. During the war, eight major world powers fought, along with several lesser states joining with one side or the other. On the side which lost were the Axis Powers Germany, [[Japan]], and [[Italy]]. Against them were the Allied Powers [[United States]], [[United Kingdom]] and the Commonwealth, the [[Soviet Union]], [[France]], and [[China]] (which was friendly to the West at the time, see [[Second Sino-Japanese War]]). Russia was drawn into the war after Germany launched an attack codenamed [[Operation Barbarossa|Barbarossa]], and soon had the support of the Allies. Britain declared war in reaction to Germany's aggression against [[Poland]], along with most of the [[Commonwealth of Nations|Commonwealth]] nations.

'''World War II''' was a global conflict fought between the [[Allies|Allied powers]] which eventually came to include the [[United States]], the [[Soviet Union]], the [[British Commonwealth]], [[Republic of China]], and many other nations and the [[Axis powers]] (mainly [[Nazism|Nazi]] [[Germany]], [[Fascism|Fascist]] [[Italy]], and Imperial [[Japan]]). Several conflicts involving the some worlds major powers precipitated the general conflagration.  On September 1, 1939 [[Poland]] was invaded by Nazi Germany. On September 3, the [[British Empire]] and the [[French Third Republic]] with its allies entered the war.

 

During the war, eight major world powers fought, along with several lesser states joining with one side or the other. On the side which lost were the Axis Powers Germany, [[Japan]], and [[Italy]]. Against them came to be the Allied Powers [[United States]], [[United Kingdom]] and the Commonwealth, the [[Soviet Union]] with its [[Comintern]] allies, and the [[Republic of China]].

==Causes==

==Causes==