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Two reasons why America entered world war 1

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Germany sent a telegraph to Mexico priming them if they assist in Germany’s war efforts they will keep all land America took from them and Germany was sinking American merchants boat with their u boats
User Derekcohen
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1: The US believed, correctly, that Germany violated its pledge to suspend unrestricted submarine warfare in the North Atlantic

2: The US accused Germany of working to bring Mexico into the war against the US.

User Imdzeeshan
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