What events lead to the U. S. deciding to enter WWI?

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.

by improved communication.

i think the fact that abraham lincoln was a tyrant

or probably like what the other person said from sitting in the chair to get assasinated xd

~batmans wife dun dun