Airman 1st Class Matthew Sunderlin, 28th Operations Support Squadron intelligence analyst technician, provides a pre-flight brief to a B-1 aircrew prior to them stepping to the aircraft during a phase II operational readiness exercise at Ellsworth Air Force Base, S.D., Feb. 13, 2014. The intent of the exercise is to evaluate the wing's ability to meet wartime and contingency tasks of employing forces, sustaining forces and maintaining the ability to survive and operate in a deployed location. (U.S. Air Force photo by Senior Airman Anania Tekurio/Released)