The U.S. Air Force Honor Guard members warm themselves in front of a heater before the Chief Master Sgt. of the Air Force Transition ceremony at Joint Base Andrews, Md., Jan. 24, 2013. Chief Master Sgt. James A. Cody became the 17th CMSAF following the retirement of Chief Master Sgt. James Roy. Roy's retirement will culminate more than 30 years of service. (U.S. Air Force photo/ Staff Sgt. Perry Aston)