Cpl. Deyton Parker (left), tank mechanic, and Sgt. Soran Shay (right), tank commander, both with Company F, 4th Tank Battalion, 4th Marine Division, create grid lines on a terrain model during exercise Winter Break 2018, Feb. 7, 2018. Reserve Marines spend two weeks each year building their capabilities at an Annual Training exercise. This year, the Camp Lejeune, North Carolina, based tank company is taking advantage of Camp Grayling’s rugged training areas to test their offensive, defensive and maneuver capabilities in a cold weather environment.