Army Chief of Staff Gen. Mark Alexander Milley places flags at gravesite as the Army 3d U.S. Infantry Regiment, The Old Guard, honor the nation's fallen military heroes during its annual Flags In ceremony at Arlington National Cemetery, 할 수있다 24, 2018. Milley will join President Biden as he gives Memorial Day remarks at the cemetery in honor of Memorial Day Monday. (AP 사진 / 클리프 오웬)