military and civilian personnel congratulate newly selected chief petty officers during a rank pinning ceremony at MacDill Air Force Base, Fla., Sept. 16, 2017. The Navy officially established the rate of CPO on April 1, 1893, although the term chief was used as early as 1776. (Photo by Air Force Master Sgt. Barry Loo)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: chief, cpo, officer, operations, petty, promotion, snco, socom, special