2nd Lt. Evan L. Oncay, a platoon leader with the 539th Transportation Company, an active component unit from Fort Wainwright, Alaska, conducts weapon maintenance on M2A1 machine gun after field training June 8, 2017, at the National Training Center. The 539th is supporting Mississippi's 155th Armored Brigade Combat Team during their rotation at NTC. (Mississippi

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Keywords: 102mpad, 155ntc17, 155th, air, america, archive, armed, army, defence, force, forces, military, navy, reportage, service, serviceman, servicemen, soldier, states, united, usa