Why did Japan attack the U.S.A in WW1?

Why did Adolf Hitler burn the Jews?

Did the Japanese have their own SS units in World War 2 like Germany (excluding Unit 731)?

How dangerous is war for civilians?

How were shell cases recycled in WW II, and was it the standard?

During WWII, when did Japan start to produce the 1560-HP Kinsei 62 double row radial engine?

Why didn’t Hitler make peace with Stalin when he was losing the war?

Was there any hostility between China and Korea before WWII?

Which major European country did Japan defeat in 1905?

If Napoleon Bonaparte lived in Adolf Hitler’s era and France was threatened by him, what would he do then?

How have industries like Coca-Cola and Hollywood helped the USA become sympathetic towards the rest of the world?

What was happening in Israel during the mass slaughter of Jews during the rule of Hitler?

Why was Nazi Germany so hard to defeat?

Why were Soviet troops looking for scientists near the end of WW2?

How much leave did the German soldiers get towards the end of WW2 when they were getting harassed from all sides?

Where does Marine Le Pen really stand with regards to French participation in sending Jews to the concentration camps?

How useful would dive bombers and ground attack aircraft from the Second World War be in the War on Terror?

How many people were killed in the Holocaust overall?

What was the Japanese economic policy in WW1, the interwar period and WW2?

If Japan invents time travel today, what could they possibly do to prevent the occurrence of catastrophic nuclear attacks in Hiroshima and Nagasaki?