PETERSON AIR FORCE BASE, Colo. – Chief Master Sgt. Brendan Criswell, Air Force Space Command command chief, tours the Fire Station with Staff Sgt. Derrick Grinnell, 21st Civil Engineer Squadron fire inspector 2, at Peterson Air Force Base, Colo., May 11, 2017. Criswell spent the day shadowing Grinnell on the duties of a fire inspector at Peterson AFB. ( Air Force photo by Airman 1st Class Dennis Hoffman)

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Keywords: afspc/ccc, chief, criswell, mentor