On This Day 100 Years Ago, The U.S. Entered World War I

On April 6, 1917, the House of Representatives voted to go to war against Germany. The Senate had already approved President Woodrow Wilson's call for American participation in the bloody conflict, which was nearly three years old at that point.

Here & Now's Jeremy Hobson talks with Michael Neiberg (@MichaelNeiberg), chair of war studies at the U.S. Army War College, about why the U.S. decided to enter the war and what difference it made.