World war 2 history

What was the name of the German air force during World War II?

Which country did Germany invade on September 1, 1939, starting World War II?

Who was the leader of Nazi Germany during World War II?

What was the code name for the Allied invasion of Normandy in June 1944?

In what year did the United States enter World War II?

What was the name of the atomic bomb dropped on Hiroshima, Japan, on August 6, 1945?

What was the name of the battle that marked the turning point in the war in Europe and led to the defeat of Nazi Germany?

What was the name of the secret project to develop the first atomic bomb during World War II?

What was the name of the Japanese attack on Pearl Harbor, Hawaii, on December 7, 1941?

What was the name of the Nazi concentration camp where over one million people were killed during World War II?