What impact did the Americans make to the World War 1?

What was the worst Japanese internment camp? Which two countries fell into dictatorship after ww1? What nations were involved in world war 2? What was the largest attack on American soil? What changes did the reforms of the meiji restoration bring about in japan? Who supported slavery and why? When did the British blockade the Germans in World War 1? What were the Balkans called during World War 1? List of army ranks? What was the first practical peacetime use of airplanes? What country had the largest submarine fleet during World War 1? Why did the Japanese treat POW's so poorly? Who where the people who fought in World War 2? How does Winston feel about Emmanuel Goldstein? What land use stratigies were practiced by people in the north region? How did Winfield Scott Hancock die? How many countries originally signed the United Nations Charter? How did World War 2 affect the ANZAC spirit? What did goering do before he was executed? What happened at Winter at Valley Forge?