Chief Master Sgt. Brendan Criswell, Air Force Space Command command chief, smiles alongside Schriever Air Force Base’s Base Defense Operations Center defenders during a visit at Schriever AFB, Colo., Friday, Sep. 8, 2017. Criswell received briefings on individual roles and responsibilities as well as base security systems during his visit. ( Air Force photo/Christopher DeWitt)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: afb, afspc, chief, command, defenders, forces, schriever, security, sf, sgt., staff