Lt. Col. Mitchell Cok, 88th Fighter Training Squadron commander, goes through some pre-flight checks before an Introduction to Fighter Fundamentals training sortie at Sheppard Air Force Base, Texas, May 22, 2018. Cok was recognized as a Profession of Arms Center of Excellence Leadership Impact Award recently for his initiative to inspire and motivate military and civilian Airmen in the squadron to provide the best Introduction to Fighter Fundamentals course in Air Education and Training Command. (U.S. Air Force photo by John Ingle)