Members of the U.S. Air Force Band play the National Anthem during the Chief Master Sergeant. 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 CMSAF James A. Roy. Roy's retirement culminated more than 30 years of service. (U.S. Air Force photo/ Staff Sgt. Nichelle Anderson)