Who served as President during World War I?

Woodrow Wilson served as President of the United States during World War I, which lasted from 1914 to 1918. He was in office from 1913 to 1921, and his presidency is particularly noted for his leadership during this tumultuous period in history. Wilson initially sought to keep the United States out of the conflict but eventually asked Congress to declare war on Germany in April 1917, citing the need to make the world "safe for democracy." His administration is also known for promoting the League of Nations, an international organization aimed at maintaining peace after the war, which reflected his vision of a cooperative global order.

The other individuals mentioned were not in office during the war; Theodore Roosevelt and William Howard Taft served before Wilson, while Calvin Coolidge took office after the war had ended. This context emphasizes the significance of Wilson's leadership and policies in shaping the United States' role in World War I and the post-war world.