Beginning with George Washington’s presidency, the United States sought a policy of isolationism and neutrality with regards to the internal affairs of other nations. Early American political leaders argued that with the exception of free trade, self-defense and humanitarian emergencies, the U.S. would do best to avoid permanent alliances that do not serve American interests but instead deflect attention from domestic issues. When World War I broke out in July 1914, the United States actively maintained a stance of neutrality, and President Woodrow Wilson encouraged the U.S. as a whole to avoid becoming emotionally or ideologically involved in the conflict. Americans were more than happy to stay out of the war, and Wilson won a second Presidential term in 1916 by running on a platform of non-interference; the phrase, “he kept us out of war” became a popular slogan used by Wilson’s supporters.
Upon re-election, Woodrow Wilson was resolute in staying out of a war, even as a significant movement within the American government advocated for preparedness in the face of events that signified growing German international aggression—such as the sinking of the British ocean liner Lusitania by a German submarine, which claimed the lives of many Americans. After several years observing these and similar acts of aggression by the Germans, Wilson—a political scientist by profession—began to change his viewpoint as he saw that the devastating war in Europe was threatening to spill across the Atlantic Ocean. With massive loss of life came a moral imperative that could no longer be ignored, requiring the United States to take a leadership role in maintaining and promoting freedom, sovereignty and self-determination for all nations. Wilson began making public statements that framed the war as a means to right the wrongs in the world rather than simple military posturing. Thus, the United States’ intervention in the First World War or, the “Great War,” helped shape the nation’s status as a self-proclaimed defender of freedom and democracy worldwide and radically altered U.S. foreign policy.