Why did Hitler refuse to send reinforcements to Normandy?

He thought that the primary invasion would happen in Calais.

France was overrun by German and Italian forces.- The Battle of France forced the French to surrender to Germany because of the fast advance of German army.

Germany - Germany launch the Operation Barbarossa.  

It began the war mostly surrounded by Allied countries.- Germany was in the center of Europe surrounded by Allied powers during the war.

He believed that Jews were to blame for Germany's defeat in World War I.

22222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222

alliances in ww1 were different from ww2 because the entente in ww1 made up of serbia,russia,france,britan,japan and italy later america  and all allied in a sort of balance of power and too keep germany,austria-hungary,and the ottomans down. russia allied the serbians in order to exert its influence in the balkans while france allied the russians because france was still in dismay and insulted after the defeat to the germans during the unification of germany and britian allied the belgians after the germans invasion of belgium.in ww2 the alliances were in a preemptive attempt to deter any further wars into happening while germany and italy allied since they were insulted and humiliated after the previous war while also sharing a similar ideology of facsim along with japan which all 3 had a want for world domination and agreed to assist one another in the endevours 

explanation: