U.S. Army Maj. Gen. Haldane Lamberton, left, adjutant general of the Kentucky National Guard, presents U.S. Air Force Maj. Gen. Charles Walker, Air National Guard assistant to the judge advocate general of the United States Air Force, with a certificate of retirement during a ceremony in Nashville, Tenn., July 24, 2026. Walker is concluding a distinguished 35-year career during which he previously served as director of the Office of Complex Investigations at the National Guard Bureau in Washington, D.C., chief of staff for the Air Component at Joint Force Headquarters—Kentucky National Guard, and staff judge advocate for the Kentucky Air Guard’s 123rd Airlift Wing in Louisville. (U.S. Air National Guard photo by Dale Greer)