Assurance and Deterrence
U.S. Air Force Staff Sgt. Matthew Helms, a dedicated crew chief assigned to the 509th Aircraft Maintenance Squadron, conducts pre-flight inspections on a B-2 Spirit aircraft Aug. 24, 2016 at Andersen Air Force Base, Guam. Bomber operations provide a visible demonstration of the U.S. ability to project power globally and respond to any potential crisis or challenge. (U.S. Air Force photo by Senior Airman Jovan Banks)