U.S. Air Force Senior Airman Hirantha De Mel, a crew chief with the 509th Aircraft Maintenance Squadron, watches a U.S. Air Force B-2 Spirit bomber perform an engine run, March 11, 2016, in the U.S. Pacific Command area of operations. Strategic Command bombers regularly deploy to the Indo-Asia-Pacific region to conduct PACOM-led operations which provide leaders deterrence options to maintain regional stability. (U.S. Air Force photo by Senior Airman Joel Pfiester/Released)