Since George Washington’s warning in his 1796 Farewell Address that the United States should stay out of European Alliances, the United States had followed a policy of non-intervention in European affairs. On April 2nd 1917 President Wilson changed this policy when he asked Congress to declare war on Germany in 1917.

Describe the events that led President Wilson to change American non-interventionist policy
Explain if you think that he could have avoid war or not