A U.S. Marine with Hotel Battery, 3rd Battalion, 14th Marine Regiment, 4th Marine Division, plots points on a graph at Adazi Training Area, Latvia, March 2, 2019, in support of exercise Dynamic Front 19. Reserve units from across 14th Marine Regiment are the only U.S. Marine Corps units participating in DF19. Approximately 3,200 participants from 27 nations will take part in the live-fire portion of exercise Dynamic Front 19, March 2-9, 2019, at the U.S. Army's Grafenwoehr Training Area, Germany; as well as in Riga, Latvia; and Torun, Poland. (U.S. Marine Corps photo by Sgt. Andy O. Martinez)