U.S. Marine Corps Sgt. Adrian J. Willis, a computer technician with 7th Communications Battalion, pictured here aboard Marine Corps Base Camp Hansen in Okinawa, Japan, is one of the Marines that utilize 3D printing technology to expand capabilities within the unit. - U.S. Marine Corps Sgt. Adrian J. Willis, a computer technician with 7th Communications Battalion, pictured here aboard Marine Corps Base Camp Hansen in Okinawa, Japan, is one of the Marines that utilize 3D printing technology to expand capabilities within the unit. Willis, from Las Vegas, Nev., is in charge of expanding the printer’s capabilities and establishing the standard operating procedures for the printer in order to implement and track its impact in the unit. (Photo by United States Marine Corps Cpl. George Melendez)

U.S. Marine Corps Lt. Gen. David H. Berger, left, outgoing commander of U.S. Marine Corps Forces, Pacific, and Lt. Gen. Lewis A. Craparotta, incoming commander of MARFORPAC, salute the colors as they pass in review during the MARFORPAC change of command ceremony at Marine Corps Base Hawaii, Aug. 8, 2018. The change of command ceremony represents the transfer of responsibility and authority over MARFORPAC between commanders. - U.S. Marine Corps Lt. Gen. David H. Berger, left, outgoing commander of U.S. Marine Corps Forces, Pacific, and Lt. Gen. Lewis A. Craparotta, incoming commander of MARFORPAC, salute the colors as they pass in review during the MARFORPAC change of command ceremony at Marine Corps Base Hawaii, Aug. 8, 2018. The change of command ceremony represents the transfer of responsibility and authority over MARFORPAC between commanders.

The 37th Commandant of the Marine Corps, Gen. Robert Neller, speaks to Marines of the I Marine Expeditionary Force about the future of their Corps during his visit to Marine Corps Base Camp Pendleton, California, Oct. 5, 2015. Gen. Neller spoke about future equipment that will be used by the Marine Corps, discussed the importance of being a strong leader and answered any question the Marines had. - The 37th Commandant of the Marine Corps, Gen. Robert Neller, speaks to Marines of the I Marine Expeditionary Force about the future of their Corps during his visit to Marine Corps Base Camp Pendleton, California, Oct. 5, 2015. Gen. Neller spoke about future equipment that will be used by the Marine Corps, discussed the importance of being a strong leader and answered any question the Marines had.

Gen. Robert B. Neller speaks to Marines for the first time as commandant at Marine Corps Base Quantico, Va., Oct. 1, 2015. Neller focused on people, readiness, training, Naval integration and modernization during his speech. - Gen. Robert B. Neller speaks to Marines for the first time as commandant at Marine Corps Base Quantico, Va., Oct. 1, 2015. Neller focused on people, readiness, training, Naval integration and modernization during his speech.