PETERSON AIR FORCE BASE, Colo. – Chief Master Sgt. Brendan Criswell, Air Force Space Command command chief, and Staff Sgt. Derrick Grinnell, 21st Civil Engineer Squadron fire inspector 2, assess the exiting speed of service members in the clinic during a fire drill at Peterson Air Force Base, Colo., May 11, 2017. Grinnell and Criswell administered fire drills at various locations on base as part of the monthly inspection process.

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Keywords: afspc/ccc, air, america, archive, armed, army, chief, criswell, defence, force, forces, mentor, military, navy, reportage, service, serviceman, servicemen, soldier, states, united, usa