How did ww1 lead to a totalitarian government

Hitler's rise was much more clearly connected to WWI.Then  The Treaty of Versailles had punished Germany harshly. WWI contributed to the rise of dictatorship, then, because it caused some countries to be unhappy with the world order that came out of the war.

hope it helps

honestly it just comes down to the

the united states broke it's neutrality was the constant german sinking of trading vessels resulting in the loss of lives, one example would be the lusitania.