At the outbreak of World War One, the United States of America decided not to involve itself in what it saw as a European conflict. However, some major events brought an end to this neutral position.

How was the USA involved in World War One? Find out why the USA decided to enter World War One, and how US involvement helped bring the war to an end.

It was on April 6 in 1917, that the United States abandoned its stance of neutrality and officially joined the Allied powers ...