U.S. Marine Corps Maj. John McNabb, an infantry officer with 4th Reconnaissance Battalion, loads his magazine at Range K501, Marine Corps Base Camp Lejeune, North Carolina, Oct. 17, 2019. The DPC/RSU-East provides support to non-mobilized Reserve Component unit training, conducts Individual Augment deployment/re-deployment processing, and supports activated Reserve units/dets while aboard Camp Lejeune in order to support total force integration during mobilization. (U.S. Marine Corps photo by Pfc. Leslie Alcaraz)