Second Lt. William Ostermeyer, left, and 2nd Lt. Daniel Lowery call for fire on an enemy position at the Field Artillery Basic Officers Leadership Course at Fort Sill, Oklahoma, May 12, 2016. Marines and soldiers train cohesively through the five-month course.

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Keywords: ., 2nd, adams, army, artillery, boy, brodie, capt., corps, fort, harrison, isaac, katherine, lt., marine, marines, marlin, sill, training, virginia, wayne, williams