Lt. Col. Wade Karren, 11th Bomb Squadron commander, copilots a B-52 Stratofortress during a B-52 and B-1 Lancer integration flight June 15, 2016. Since October 1, 2015, all of the Air Force’s bombers have been unified under Air Force Global Strike Command, which is now responsible for organizing, training and equipping all bomber Airmen. (U.S. Air Force photo/Senior Airman Luke Hill)