Robert Neiberger visits the gravesite of his brother U.S. Army Spc. Christopher Neiberger at Arlington National Cemetery Nov. 10, 2017 in Arlington, VA.
NEW YORK, NY - NOVEMBER 10: Mario Tronti, a member of the 42nd Infantry Division of the U.S. National Guard, performs 'Taps' as an American flag is raised on the facade of the New York Stock Exchange (NYSE), November 10, 2017 in New York City. The United States will mark Veterans Day this Saturday, November 11. (Photo by Drew Angerer/Getty Images) ORIG FILE ID: 872551408
Lamyaa Awad-Mowery tends the gravesite of U.S. Army Capt. Humayun Khan before the start of an interfaith service in observance of Veterans Day at Arlington National Cemetery Nov. 10, 2017 in Arlington, VA.
Gulf War veteran John Schoon visits the gravesite of U.S.M.C. Sgt Christopher Hrbek one day before Veterans Day at Arlington National Cemetery Nov. 10, 2017 in Arlington, VA. Veterans Day, observed on Nov. 11, honors all members of the U.S. military who served in the United States Armed Forces.
Air Force veteran Patrick Duncan looks for the names of his classmates killed in Vietnam at the Philadelphia Vietnam Veterans Memorial in Philadelphia, Nov. 10, 2017.
US Navy Academy cadets visit the Korean War Memorial on Veterans Day Nov. 10, 2017 in Washington, DC.
A man visits the National Mall during the Veterans Day holiday Nov. 10, 2017 in Washington, DC.