U.S. Air Force 1st Lt. Zachary Hamby, a C-17 Globemaster

U.S. Air Force 1st Lt. Zachary Hamby, a C-17 Globemaster III pilot with the 15th Airlift Squadron, boards a C-17 in preparation to a Crescent Reach 15 mission May 20, 2015, at Joint Base Charleston, S.C. This local exercise, which tested and evaluated Joint Base Charleston's ability to launch a large aircraft formation in addition to process and deploy duty passengers and cargo in response to a simulated crisis abroad from May 18-21. Deploying members' ability to survive and operate in deployed environments was also exercise through Chemical, Biological, Radiological, Nuclear Explosives training and evaluation events. (U.S. Air Force photo by Staff Sgt. Jamal D. Sutter)