Outline the event that pushed the United States into world war 1

the sinking of Lusitania by germans

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.

Explanation:

On April 2, 1917, President Woodrow Wilson went before a joint session of Congress to request a declaration of war against Germany. ... 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.

hope it help if not sorry

using the scientific method.