Lt. Gen. Miller is responsible to the Chief of Staff for leadership, management and integration of Air Force logistics readiness, aircraft, munitions and missile maintenance, civil engineering and security forces. He is also responsible for setting policy and preparing budget estimates that reflect enhancements to productivity, combat readiness and quality of life for Airmen. He has served in a variety of leadership positions and has commanded maintenance squadrons in the United States and Iraq, a maintenance group in Afghanistan, a nuclear wing, an air logistics complex, and has served on the Air Staff and the Joint Staff. Before his current position, he was the Commander of the Air Force Sustainment Center, Air Force Materiel Command, Tinker Air Force Base, Oklahoma.