Senior Master Sgt. Gary Byers, superintendent at the 1st Special Operations Wing Command Post, is congratulated on his selection to the rank of chief master sergeant at Hurlburt Field, Fla., Dec. 17, 2015. Chief master sergeant is the highest enlisted rank, making up 1 percent of the enlisted Air Force. ( Air Force photo by Senior Airman Jeff Parkinson

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Size: 4759px × 3167px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: chief, promote, release