Originally called Armistice Day, this holiday was established to honor Americans who had served in World War I. It falls on November 11, the day when that war ended in 1918, but it now honors veterans of all wars in which the United States has fought.
Veterans' organizations hold parades or other special ceremonies, and the president customarily places a wreath on the Tomb of the Unknowns at Arlington National Cemetery, across the Potomac River from Washington, D.C.
