Question

Why did the United States eventually enter World War I? Germany violated Belgium neutrality. German U-boats sank ships with Americans aboard. The balance of power changed with the surrender of Russia.

Answer 1

The answer is B. German U-boats sank ships with Americans aboard. That's basically what the other guy was trying to say.....

Answer 2

Although the United States was very isolationist before World War I, the United States eventually entered the war because German U-Boas were sinking American ships.