One Reason the U.S. joined the fight against Germany is WWI was:
A.The Zimmerman note revealed that Germany was planning to attack Mexico.
B. The German use of trench warfare caused great damage to American cities.
C. German U Boats sunk many cargo and passenger ships including the Lusitania.
D.America had no ties to Germany as very few German immigrants had to come to the U.S.
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.
