One last march
Master Sgt. James Chism prepares to march in for his retirement ceremony along with Lt. Col. James Hilburn, the presiding officer, at the Air Force memorial in Arlington, Va, April 1, 2015. During the spring, summer and fall months, the Air Force Memorial plays host to nearly three official ceremonies each day, including retirements, promotions, reenlistments and several others. (U.S. Air Force photo/Staff Sgt. David Salanitri)