Battle of France>German-Polish War
Invasion of Poland>Spanish Civil War
The Germans literally only sent air and a few armored divisions to help out. Saying a volunteer force means you won the war would be like saying Brazil won the entirety of ww2 due to the Smoking Snakes>German-Yugoslav War
Invasion of Yugoslavia>German-Greek War
Battle of Greece>German-Norwegian War
Do you know what these are? Battles and invasions. Know what war it was a part of? World War 2.
Guess which war Nazi germany lost? World War 2.