2nd Lt. Evan Neese, a field artillery officer with Headquarters Battery, 3rd Battalion, 11 Marine Regiment, 1st Marine Division, calibrates an M2A2 Aiming Circle during the Battery Supervisors Course held at Marine Corps Base Camp Pendleton, Calif., Sept. 28, 2016. The course shows Marines how to properly set up a battery unit and control the unit from leadership positions. Marines learn to use tools such as the M2A2 Aiming Circle in the event that the digital tools are unusable. ( Marine Corps Photo by Cpl. Justin Huffty)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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Keywords: 1st, advanced, aiming, artillery, assistant, battery, camp, circle, circles, dagr, defense, digital, division, global, m2a2, marines, pendleton, personal, positioning, receiver, rpda, ruggedized, school, states, supervisors, system, training, united, usmc