Marines with Weapons Company, 1st Battalion, 24th Marines, 25th Marine Regiment, 4th Marine Division, navigate the route to their next checkpoint during the final exercise of exercise Nordic Frost on Camp Ethan Allen Training Site in Jericho, Vt., Jan. 22, 2018. The exercise allowed Marines to demonstrate their ability to operate in a cold weather mountainous environment, conducting land navigation, marksmanship training, demolitions, call for fire training and other core competencies. (U.S. Marine Corps photo by Pfc. Samantha Schwoch/released) - Marines with Weapons Company, 1st Battalion, 24th Marines, 25th Marine Regiment, 4th Marine Division, navigate the route to their next checkpoint during the final exercise of exercise Nordic Frost on Camp Ethan Allen Training Site in Jericho, Vt., Jan. 22, 2018. The exercise allowed Marines to demonstrate their ability to operate in a cold weather mountainous environment, conducting land navigation, marksmanship training, demolitions, call for fire training and other core competencies. (U.S. Marine Corps photo by Pfc. Samantha Schwoch/released)

Lance Cpl. Ethan Evans (left), a motor transport mechanic with 6th Air Naval Gunfire Liaison Company, Force Headquarters Group, instructs Lance Cpl. Jacob Levy, a ground electronic maintenance technician with 6th ANGLICO, on the M249 squad automatic weapon range Jan 23, 2016 at Camp Roberts, Calif. The Marines of 6th ANGLICO conducted call-for-fire exercises and machine gun ranges alongside mortar platoons from 2nd Battalion, 23rd Marine Regiment, 4th Marine Division, to complete comprehensive live-fire training. - Lance Cpl. Ethan Evans (left), a motor transport mechanic with 6th Air Naval Gunfire Liaison Company, Force Headquarters Group, instructs Lance Cpl. Jacob Levy, a ground electronic maintenance technician with 6th ANGLICO, on the M249 squad automatic weapon range Jan 23, 2016 at Camp Roberts, Calif. The Marines of 6th ANGLICO conducted call-for-fire exercises and machine gun ranges alongside mortar platoons from 2nd Battalion, 23rd Marine Regiment, 4th Marine Division, to complete comprehensive live-fire training.

Marines from Battery M, 3rd Battalion, 14th Marine Regiment, 4th Marine Division gather together as a class is given covering the fundamentals, functions and safety procedures of crew-served weapons at Pelham Range in Anniston, Alabama, on Sept. 19, 2015. The Marines applied all of their knowledge and increased their proficiency in firing the M249 SAW, the M240 and the M250. - Marines from Battery M, 3rd Battalion, 14th Marine Regiment, 4th Marine Division gather together as a class is given covering the fundamentals, functions and safety procedures of crew-served weapons at Pelham Range in Anniston, Alabama, on Sept. 19, 2015. The Marines applied all of their knowledge and increased their proficiency in firing the M249 SAW, the M240 and the M250.