Question

Why did the United States break diplomatic relations with Germany in 1917?

Answer 1

my 5 options are
-Germany refused to accept President Wilson’s Fourteen Points.
-Germany signed the Treaty of Brest-Litovsk with Russian Bolsheviks.
-Germany declared unrestricted submarine warfare against all ships.
-Germany sank the British liners Lusitania and Arabic in quick succession.
-Germany offered to help Mexico recover Texas, New Mexico, and Arizona

Answer 2

Germany declared unrestricted submarine warfare against all ships it was one of their new policys