Marines with Bravo Company, 4th Tanks Battalion, prepare to fire a 50 cal. machine gun mounted on a M1A1 Abrams tank during Exercise Arrow 18 in Pohjankangas Training Area near Kankaanpaa, Finland, May 17, 2018. Exercise Arrow is an annual Finnish multi-national exercise with the purpose of training with mechanized infantry, artillery, and mortar field training skills in a live-fire exercise. This is the first year the Marine Corps is participating in this exercise and the first time the M1A1 Abrams tanks have been in Finland. (U.S. Marine Corps photo by Staff Sgt. Marcin Platek/Released)