Lightning War was the WWII German invasion of Poland on or about 01 September 1939. A military method of employing motorized land vehicles with flying machines (airpower) into one team effort to accomplish a military objective Since both ground and air machines travelled faster than the traditional men & horses from past wars, the term "Lightning War" (in English) was applied.
On September 1, 1939 Germany invaded Poland and World War II began. At the same time the Soviet Union attacked Poland from the east. It was divided up among the countries before the Allies were able to help.
Germany's attack was carried out with fast tanks and troops that were supported by warplanes. Because the German army moved very quickly this phase of the war was called "Blitzkrieg". In the following spring Germany invaded Norway and Denmark.
Both countries were occupied by the German army by June.
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