A rainbow appears in the sky framing a U.S. Air Force C-17 Globemaster III on the flight line at Joint Base Elmendorf-Richardson, Alaska, Sept. 10, 2013, as soldiers inside assigned to 3rd Battalion, 21st Infantry Regiment, part of U.S. Army Alaska's 1st Stryker Brigade Combat Team, 25th Infantry Division, wait to off-load Strykers from the aircraft. The soldiers transported with their Strykers from Fort Wainwright, Alaska, to participate in a combat training exercise with USARAK's 4th Infantry Brigade Combat Team (Airborne), 25th Infantry Division, at JBER. (U.S. Air Force photo by Justin Connaher/Released)