Who was President during World War I?

Woodrow Wilson was the President of the United States during World War I. He served as President from 1913 to 1921, and his presidency coincided with the United States' entry into and involvement in the war. President Wilson initially pursued a policy of neutrality but eventually decided to join the war effort in 1917, following the German policy of unrestricted submarine warfare and other factors. Wilson played a significant role in shaping the American war effort and was instrumental in promoting his vision for a post-war world through his Fourteen Points and involvement in the negotiations for the Treaty of Versailles.