Air Force Tech. Sgt. Christopher Pfeiffer, 377th Weapons Systems Security Squadron Charlie Flight team captain, dons his gas mask during the 377th Security Forces Group Manzano challenge at Kirtland Air Force Base, , Sept. 28, 2018. The challenge contained 9 tasks, ranging from pushing a Humvee to range finding.

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Keywords: 377, air, airmen, america, archive, armed, army, compete, defence, force, forces, group, kirtland, military, navy, reportage, security, service, serviceman, servicemen, sf, sfg, soldier, states, united, usa