U.S. Marine Corps 1st Lt. Zachary Scalzo participates in a combat marksmanship range during exercise Fuji Viper 20.1 in Camp Fuji, Japan, Oct. 16, 2019. Fuji Viper is a regularly scheduled training evolution for infantry units assigned to 3rd Marine Division as part of the unit deployment program. The training allows units to maintain their lethality and proficiency in infantry and combined arms tactics. Scalzo is assigned to 4th Marine Regiment, 3rd Marine Division. - U.S. Marine Corps 1st Lt. Zachary Scalzo participates in a combat marksmanship range during exercise Fuji Viper 20.1 in Camp Fuji, Japan, Oct. 16, 2019. Fuji Viper is a regularly scheduled training evolution for infantry units assigned to 3rd Marine Division as part of the unit deployment program. The training allows units to maintain their lethality and proficiency in infantry and combined arms tactics. Scalzo is assigned to 4th Marine Regiment, 3rd Marine Division.

U.S. Marine Corps 1st Lt. Ryan McCormic, the motor transport officer with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, showcases 3D printing capabilities at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Feb. 19, 2018. - U.S. Marine Corps 1st Lt. Ryan McCormic, the motor transport officer with 2nd Battalion, 7th Marine Regiment, 1st Marine Division, showcases 3D printing capabilities at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., Feb. 19, 2018. 2nd Battalion, 7th Marine Regiment is the first infantry battalion on the west coast to implement 3D printing at their unit. (U.S. Marine Corps photo by Cpl. Joseph Prado)

Marines with 2nd Battalion, 24th Marine Regiment, 23rd Marines, 4th Marine Division, begin their preparations of rappelling down a cliffside, during Mountain Exercise 3-18, at Mountain Warfare Training Center, Bridgeport, Calif., June 22, 2018. After completing Integrated Training Exercise 4-17 last year, 2nd Bn., 24th Marines took part in MTX 3-18 to further develop small-unit leadership and build an understanding of the different climates and scenarios they could face in the future. - Marines with 2nd Battalion, 24th Marine Regiment, 23rd Marines, 4th Marine Division, begin their preparations of rappelling down a cliffside, during Mountain Exercise 3-18, at Mountain Warfare Training Center, Bridgeport, Calif., June 22, 2018. After completing Integrated Training Exercise 4-17 last year, 2nd Bn., 24th Marines took part in MTX 3-18 to further develop small-unit leadership and build an understanding of the different climates and scenarios they could face in the future.

Marines from Kilo Battery, 2nd Battalion, 14th Marine Regiment, inspect a M142 High Mobility Artillery Rocket System (HIMARS) after being offloaded from an Air Force MC-130, on Fort Campbell, Ky., March 30, 2018. Marines from Kilo Battery flew from Fort Campbell to Dugway Proving Grounds, Utah, where they offloaded and fired four HIMARS missiles, demonstrating a unique capability that will give commanders more options to deal with threats when other options are not appropriate. - Marines from Kilo Battery, 2nd Battalion, 14th Marine Regiment, inspect a M142 High Mobility Artillery Rocket System (HIMARS) after being offloaded from an Air Force MC-130, on Fort Campbell, Ky., March 30, 2018. Marines from Kilo Battery flew from Fort Campbell to Dugway Proving Grounds, Utah, where they offloaded and fired four HIMARS missiles, demonstrating a unique capability that will give commanders more options to deal with threats when other options are not appropriate.

Cpl. John C. Fisher, squad leader, 2nd Battalion, 8th Marine Regiment, leads his Marines through Range 410 while participating in Integrated Training Exercise 3-16 at Marine Corps Air Ground Combat Center, Twentynine Palms, California, May 9, 2016. 2/8 came from Marine Corps Base Camp Lejeune, North Carolina, to participate in ITX 3-16. (Official Marine Corps photo by Lance Cpl. Dave Flores/Released) - Cpl. John C. Fisher, squad leader, 2nd Battalion, 8th Marine Regiment, leads his Marines through Range 410 while participating in Integrated Training Exercise 3-16 at Marine Corps Air Ground Combat Center, Twentynine Palms, California, May 9, 2016. 2/8 came from Marine Corps Base Camp Lejeune, North Carolina, to participate in ITX 3-16. (Official Marine Corps photo by Lance Cpl. Dave Flores/Released)

Cpl. Kody Biggs, a rifleman with 2nd Battalion, 8th Marine Regiment, makes his down river, around a trail that is known to have notional improvised explosive devices during an attack evolution at Marine Corps Base Camp Lejeune, N.C., April 20, 2016. The Marines conducted patrols, ambushes and assaults to prepare of their upcoming Integrated Training Exercise. - Cpl. Kody Biggs, a rifleman with 2nd Battalion, 8th Marine Regiment, makes his down river, around a trail that is known to have notional improvised explosive devices during an attack evolution at Marine Corps Base Camp Lejeune, N.C., April 20, 2016. The Marines conducted patrols, ambushes and assaults to prepare of their upcoming Integrated Training Exercise.

Artillery rounds fired by Marines with 1st Battalion, 10th Marine Regiment make impact at Observation Post 3 during a battalion field exercise held by 2nd Battalion, 8th Marine Regiment at Marine Corps Base Camp Lejeune, North Carolina, March 15, 2016. The battalion coordinated with artillery, mortars and rotary-wing aircraft to direct fire support. - Artillery rounds fired by Marines with 1st Battalion, 10th Marine Regiment make impact at Observation Post 3 during a battalion field exercise held by 2nd Battalion, 8th Marine Regiment at Marine Corps Base Camp Lejeune, North Carolina, March 15, 2016. The battalion coordinated with artillery, mortars and rotary-wing aircraft to direct fire support.

Marines with 2nd Battalion, 2nd Marine Regiment, launch a round during a live-fire mortar exercise with 81 mm mortar systems in preparation for the unit’s upcoming deployment at Marine Corps Base Camp Lejeune, North Carolina, Jan. 21,2016. The Marines worked with the mortar systems until the late evening, sending more than 350 rounds downrange, and accomplished their goal of having more than 90 percent of their rounds impact on their designated targets. - Marines with 2nd Battalion, 2nd Marine Regiment, launch a round during a live-fire mortar exercise with 81 mm mortar systems in preparation for the unit’s upcoming deployment at Marine Corps Base Camp Lejeune, North Carolina, Jan. 21,2016. The Marines worked with the mortar systems until the late evening, sending more than 350 rounds downrange, and accomplished their goal of having more than 90 percent of their rounds impact on their designated targets.