Question

What was one major reason the United States entered World War I on the Allied side?

Answer 1

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

こんにちは、涼子です！私の答えがお役に立てば幸いです