An Indian Air Force member looks at a C-17 Globemaster III engine while Senior Airman Roshan Joseph, 437th Aircraft Maintenance Squadron aerospace propulsion maintainer, goes over how the engine works Oct. 10, 2013, at Joint Base Charleston, S.C. Joseph has taught several Indian Air Force classes while stationed at JB Charleston. When previous class members of his return to the base with an Indian Air Force C-17 he takes his current class out to the aircraft to meet with the crew. (U.S. Air Force photo/ Senior Airman Dennis Sloan)