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when the us declared war against Germany in World War 1 many men

volunteered

the made the selective act which made men over the age21 to 30 to join (only if they wanted to )

Many native Americans. the positive thing is that the army unillerated the natives. those who couldn't read or write learn in the army. They also used Propaganda which are like posters of cartoon or things that happen saying to join.

a popular one is the one with Uncle Sam pointing at whoever was looking at the poster i says I want you to join the army

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