1st Lt. Kimberly, a weapon systems officer assigned to the 34th Bomb Squadron, boards a B-1 bomber for exercise Combat Raider 18-1 at Ellsworth Air Force Base, S.D., Oct. 11, 2017. Combat Raider provides joint and coalition training using realistic scenarios that support full-spectrum operations against modern threats and replicate today’s combat operations. (U.S. Air Force photo by Airman 1st Class Donald C. Knechtel)