Question

What causes the us to enter WWl

Answer 1

Germany's resumption of submarine attacks on passenger and merchant ships in 1917 became the primary motivation behind Wilson's decision to lead the United States into World War I.

Step-by-step explanation:

Answer 2

The Zimmerman Letter

Step-by-step explanation:

Germany sent a letter to Mexico, called the Zimmerman Letter, to get Mexico on their side. The U.S. intercepted it and read that if Mexico helped Germany conquer the U.S. that they will give Mexico some of U.S. land to Mexico. The U.S. didn't like that so they joined the war against Germany.