Learn It From A Layman

We continue discussing WWII. What happened at the battle of Midway? Was radar used and why was it not very effective? What is Leningrad and where is it? Where and what is Stalingrad? Why are there so many grads? What happened at the Wannsee Conference? What were the 1000 bomber raids? Why was Malta important in WWII (and so many other wars)? Did the airplanes Faith, Hope, and Charity really hold off the Luftwaffe? What was the German "Happy Time" in the battle of the Atlantic? Who was Erich Hartmann and why were the Germans the highest scoring pilots of all-time? What did Charles Charles de Gaulle do? How did Erwin Rommel's North African campaign go in 1942? What happened at Guadalcanal?  Did Japan ever hit American mainland during WWII? Who was Enrico Fermi and what did he do?