Question

One reason the USA joined the war

multiple choice:

(1) Unrestricted submarine warfare by Germany

(2) Mexico attacked the USA

(3) Britain sank a ship that contained Americansbbing. One statement is correct.

Answer 1

(1) Unrestricted submarine warfare by Germany

Hitler/Nazi-led Germany violated a large number of the Treaty of Versailles clauses including the submarine restriction, starting in about 1935. This led to the US joining the war.

Step-by-step explanation:

Answer 2

1 is the reason out of the 3