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 Company A, 1st Battalion, 1st Marine Regiment, 1st Marine Division, conducted a raid demonstration in a simulated town and practiced the proper procedures of apprehending detainees during an amphibious raid demonstration in conjunction with a visit from the secretary of defense, at Marine Corps Base Camp Pendleton, Calif., Aug. 27, 2015. The Marines were transported to shore in amphibious assault vehicles with 3d Assault Amphibian Battalion, after exiting the amphibious transport dock ship USS New Orleans (LPD 18) while 3rd Light Armored Reconnaissance Battalion provided additional security. - Marines with Company A, 1st Battalion, 1st Marine Regiment, 1st Marine Division, conducted a raid demonstration in a simulated town and practiced the proper procedures of apprehending detainees during an amphibious raid demonstration in conjunction with a visit from the secretary of defense, at Marine Corps Base Camp Pendleton, Calif., Aug. 27, 2015. The Marines were transported to shore in amphibious assault vehicles with 3d Assault Amphibian Battalion, after exiting the amphibious transport dock ship USS New Orleans (LPD 18) while 3rd Light Armored Reconnaissance Battalion provided additional security.