Look up the events of WW2 - European Front.
Adolf Hitler
No. They did fight against each other in WW2 though.
if im understanding your question right, then no. Adolf Hitler lead the Germans
Germany
NO!!
The Axis
Germany
"For those who wish to live, let them fight, those who do not wish to fight in this world of eternal struggle, do not deserve to live." - Adolf Hitler
Vegeta
He thought that WWII was a time to fight
He did fight in World War 1 and was injured in action.
There were multiple things that Adolf Hitler believed in and fought for. If you are talking about the war, then Adolf Hitler believed in German expansion to "purify" Europe. He did this through blitzkrieg or lightning war, where the Germans invaded countries with a striking amount of manpower and war-power. Adolf Hitler didn't fight for the German cause, Germany fought for Adolf Hitler's cause.