What impact did World War 1 have on Adolf Hitler, who would later become the leader of the Nazi party?

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Gave him a devoted love for his country even more than he already had and it also made him furious at the allies after the crude limitations placed on Germany it left the German people in dissatisfaction and when he came in with his ideas and promises to fix everything they weren’t imposed because the German people were desperate it helped him get to where he was

They weaken the south vietnamese army.