What was Germany's biggest rival in world war 2?

Was D-Day the bloodiest battle of World War Two? What country did not fight against the US in World War 2? In the event of isolation during operations other than war the reasons to delay contact? What was a major function of the Union Navy in its fight against the Confederacy in the Civil War? Did many historians feel the death rate during the war was very high because military strategy lagged behind the military technology of the time? What was the point of World War II? Britain imposed and colonist protested? When the Holocaust started and ended? How far did the technology of World War 1 help Britain win the war? Why did the British government want women to join the workforce in World War 1? What is iron mans superpower? What was the first city blown up with a atomic bomb? What factors influenced the outcome of the Battle of Shiloh? How many syllables does the word veteran have? Who drove the mongols out of Syria? What was motivation for an American to leave home country to fight for France in Flyboys.? What is the battle of verden? What did all women spies have in common? What if there is no leader in a country? Why did Americans can and grow their own food during World War 2?