Question

Why did the United States enter war in 1917

Answer 1

The United States later declares war on German ally Austria-Hungary on December 7, 1917. Germany’s resumption on 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 1.

Answer 2

The United States later declared war on German ally Austria-Hungary on December 7, 1917.

Step-by-step explanation:

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.