9/2/2012 - Brig. Gen. Joseph Guastella, 455th Air Expeditionary Wing commander (left), and CMSgt Marcus Snoddy, 455 AEW command chief (right), promote SMSgt Bruce Kimball, 455th Expeditionary Maintenance Squadron First Sergeant, to CMSgt at Bagram Airfield, Afghanistan, Aug. 31, 2012. Kimball, from Bridgton, Maine, has been at Bagram for five months and his home station is Nellis Air Force Base, Nevada. (U.S. Air Force photo/SSgt Jeff Nevison)

9/2/2012 - CMSgt Bruce Kimball, 455th Expeditionary Maintenance Squadron First Sergeant, addresses personnel from his squadron after being promoted to Chief at Bagram Airfield, Afghanistan, Aug. 31, 2012. Kimball, from Bridgton, Maine, spoke briefly about his 26-year career and thanked leadership and members of his unit for their support throughout his deployment. (U.S. Air Force photo/SSgt Jeff Nevison)