Veteran's Day 2015 at Arlington National Cemetery (18 images)

U.S. President Barack Obama lays a wreath at the Tomb of the Unknown Soldier at Arlington National Cemetery, November 11 , 2015 in Arlington, Virginia. President Barack Obama visits Arlington National Cemetery for Veteran's Day Observance . Photo by Olivier Douliery/UPI

U.S. President Barack Obama and Veterans Affair secretary Robert McDonald attend a ceremony at Arlington National Cemetery, November 11 , 2015 in Arlington, Virginia. President Barack Obama visits Arlington National Cemetery for Veteran's Day Observance . Photo by Olivier Douliery/UPI

U.S. President Barack Obama speaks at Arlington National Cemetery, November 11 , 2015 in Arlington, Virginia. President Barack Obama visits Arlington National Cemetery for Veteran's Day Observance. Photo by Olivier Douliery/UPI

A man visits the grave site of a lived one on Veterans Day at Arlington National Cemetery in Arlington, Va., November 11, 2015. Photo by Molly Riley/UPI