US Air Force (USAF) AIRMAN First Class (A1C) Michael Brizendine (right), 2nd Security Forces Squadron (SFS), Barksdale Air Force Base (AFB), Louisiana (LA), shakes hands with 91-year old Lieutenant Colonel (LTC) John Livingston (USAF retired) prior to escorting him into the Barksdale Retiree Activities Offices annual Purple Heart Luncheon. LTC Livingston is the oldest of the 179 Purple Heart recipients to be honored at the luncheon