How was world war 2 effective to Chicago?

When was the first day of the attack in world war 1? What were the problems each side faced at Normandy Invasion? What happened after the battle of the plains of Abraham? What country's troops returned to vietnam in 1946 and drove the vietminh's forces into hiding in the countryside? Who won the battle fought on D-Day? Why is it Jose rizal was considered a modern day hero? Where was Canada on d-day? What post-ww2 events contribute to the cold war? When did World War 2 conflict end? What was the significance of the Battle of Midway in1942? What were the two innovations Genghis Khan used to win his civil war? What was the first war that helicopters were used in? What did the g.i. bill help ex-soldiers do? How strong is war machine? Who led the Green Mountain Boys who captured the British-held Fort Ticonderoga? What is the difference between Lines of Effort and Lines of Operations in military parlance? What was Robert lee aponent at fredrickburg? What policy led to the fall of Czechoslovakia to the Germans? How did loans to belligerents help US intervene in the ww1? Who is responsible for implementing and training personnel on emergency procedures involving medical equipment?