U.S. Air Force Gen. Mike Holmes, the commander of Air Combat Command, plays “Sister Golden Hair” by America Oct. 31, 2018, inside the U.S. Heartland of America Band concert hall at Offutt Air Force Base, Nebraska. Holmes, as the Combat Air Forces lead agent, leads ACC in developing strategy, doctrine, concepts, tactics, and procedures for air-, space-, and cyber-power employment. (U.S. Air Force photo by Charles J. Haymond)