TRANSIT CENTER AT MANAS, Kyrgyzstan -- Chief Master Sgt. Dianna Vallely stands while Air Force Chief of Staff Gen. Norton Schwartz and Chief Master Sergeant of the Air Force James Roy pin on her chevrons during a promotion ceremony Dec. 1 at the Transit Center at Manas, Kyrgyzstan. December 1, marks the 50th anniversary of the creation of the rank of chief master sergeant. Chief Vallely, now a member of the enlisted force's top one percent, is deployed from Moody Air Force Base, Ga. (U.S. Air Force photo by Senior Airman Steele Britton)