Question

What were the two reasons for U.S. entry into the Great War?

Answer 1

The two main reasons for the United States' entry into the Great War were the sinking of the RMS Lusitania by the Germans and the revelation of the Zimmermann telegram.

Answer 2

The two main reasons for U.S. entry into World War I were Germany's unrestricted submarine warfare, including the sinking of American ships, and the protection of American economic interests tied to the Allied powers.