Changes

World War II started on September 1, 1939 with the invasion of [[Poland]] by [[Germany]]. Throughout the six years it went on, eight major world powers fought in the war, 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 [[Great Britain]] and the Commonwealth, [[Russia]], [[France]], [[China]] and later the [[United States]].  

World War II started on December 7, 1941 with the [[Japan|Japanese]] attack on [[Pearl Harbor]]. 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]], [[Great Britain]] and the Commonwealth, [[Russia]], [[France]], and [[China]] which was a democratic nation at the time. Russia entered the war after Germany launched an attack codenamed [[Operation_Barbarossa|Barbarossa]], while Britain declared war in reaction to Germany's aggression against [[Poland]].

==Causes==

==Causes==

The causes of World War II are complicated. The immediate causes of World War II are generally held to be the German invasion of Poland, as well as the Japanese attacks on China, the United States, and the British and Dutch colonies. World War II began after these acts of aggression were met with an official declaration of war, armed resistance or both.  

The causes of World War II are complicated. The immediate causes of World War II are generally held to be the Japanese attacks on China, the United States, the British and Dutch colonies and the German invasion of Poland. World War II began after these acts of aggression were met with an official declaration of war, armed resistance or both.  

==German tactics==

==German tactics==