U.S. Air Force Senior Airmen Blake Nickells, left, and Alexander Dones, 2nd Aircraft Maintenance Squadron assistant dedicated crew chiefs, conduct preflight inspections on a B-52H Stratofortress at RAF Fairford, U.K., June 6, 2017. Exercises such as BALTOPS enable bomber crews to maintain a high state of readiness and proficiency and validate the bomber’s always-ready global strike capability. (U.S. Air Force photo by Airman 1st Class Randahl J. Jenson)