1. what caused the american to enter into ww ii?
2. who were the good guys in ww ii?
3. who were the bad guys in wwii?
4. what type of airplanes were used by the americans in ww ii?
5. what type of airplanes were used by the japanese in ww ii?
6. who was the president at the beginning of ww ii?
7. who was the president at the end of ww ii?
8. what new weapon was developed at the end of ww ii?
9. what two cities did the americans drop mass destructive weapons on?
10. what new inventions came from ww ii?
11. what happened to germany at the end of ww ii?
12. what was the holocaust?
13. who was the german leader during ww ii?
14. who was the british leader during ww ii?

The bombing of Pearl Harbor on December 7th, 1941 caused the US to declare war on Japan. Nazi Germany then declared war on the US. 
The good guys were the US, the Soviet Union, Britain, France, and other minor nations. The Bad guys was Nazi Germany, Imperial Japan, and Fascist Italy. New airplanes used by the Americans included the B-17 Bomber, the B-24 liberator. Japanese aircraft included the Aichi M6 Seiran. The president was Franklin Delano Roosevelt. The new president was Harry S. Truman. The new weapon was the Atomic bomb, also known in the Manhattan Project. Hiroshima and Nagasaki are included in the bombings. New inventions was the German Panzer tank, the German MG 42 and 34 machine guns, etc. Germany was devastated and it was in ruins. The Holocaust was a giant genocide that killed Jews, homosexuals, gypsies, and other races the Nazis hated. The German leader during WW2 was Adolf Hitler, Fuhrer of the Third Reich. The British Leader was Prime Minister Winston Churchill. 

Why do you have to ask such hard questions.