U.S. Marine Corps Pfc. Laurel Winn, a cannoneer with Hotel Battery, 3rd Battalion, 14th Marine Regiment, 4th Marine Division, swabs the breach of a M777 howitzer after firing a round during a live-fire range at Adazi Training Area, Latvia, March 5, 2019, during exercise Dynamic Front 19. 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 Cpl. Niles Lee)