ARLINGTON, Va.—President Barack Obama laid a wreath Monday at the Tomb of the Unknowns to honor members of the military who died serving their country.
Obama’s appearance at Arlington National Cemetery carries on a longstanding presidential tradition and comes as the U.S. struggles to end various conflicts in the Middle East.

President Barack Obama with Army Maj. Gen. Bradley A. Becker, right, bow their heads during the wreath laying ceremony at the Tomb of the Unknowns, on Memorial Day, Monday, May 30, 2016, at Arlington National Cemetery in Arlington, Va. AP Photo/Pablo Martinez Monsivais