Answer:
1.China & Japan were already in military conflict before World War 2
2.Battle of Hürtgen Forest
3.Dachau, It was open in 1933 shortly after Adolf became chancellor of Germany
4.The Battle of Stalingrad, Adolf hated stalin so his passion to take Stalingrad because of the name sake resulted in heavy losses that his generals had predicted way before & tried warning him but Adolf didn't listen
Step-by-step explanation: