Think about the factors that pushed the United States to the breaking point.Check all of the issues that were deciding factors in the United States’ decision to enter the war.

Germany’s attacks on U.S. ships through unrestricted submarine warfare increased pressure for the United States to enter the war. The Zimmermann Telegram revealed Germany’s attempted alliance with Mexico, further alarming the United States. President Wilson also presented defending democracy as a reason to join the war. There had been no direct attack on U.S. soil, and requests for help from the Allies alone were not the key deciding factors.

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