Marines with 4th Tank Battalion, 4th Marine Division, Marine Forces Reserve, perform a beach landing on a landing craft air cushion during their annual training aboard Marine Corps Base Camp Pendleton, Calif., July 16, 2016. Annual training exercises ensure that Reserve Marines are trained and prepared for any future operation or contingency. (U.S. Marine Corps photo by Cpl. Gabrielle Quire/Released) - Marines with 4th Tank Battalion, 4th Marine Division, Marine Forces Reserve, perform a beach landing on a landing craft air cushion during their annual training aboard Marine Corps Base Camp Pendleton, Calif., July 16, 2016. Annual training exercises ensure that Reserve Marines are trained and prepared for any future operation or contingency. (U.S. Marine Corps photo by Cpl. Gabrielle Quire/Released)

Cpl. Ivan A. Barbosa, a heavy equipment operator with Special Purpose Marine Air-Ground Task Force - Southern Command, conducts a period of instruction on basic operation and capabilities of a 624KR TRAM during a construction project between Honduran service members and U.S. Marines at Puerto Castilla, Honduras, June 24, 2016. The Marines worked side by side Honduran engineers on different construction and restoration projects, and shared knowledge and experience on techniques including maintenance and operation of heavy equipment. (U.S Marine Corps photo by Cpl. Ian Ferro/Released) - Cpl. Ivan A. Barbosa, a heavy equipment operator with Special Purpose Marine Air-Ground Task Force - Southern Command, conducts a period of instruction on basic operation and capabilities of a 624KR TRAM during a construction project between Honduran service members and U.S. Marines at Puerto Castilla, Honduras, June 24, 2016. The Marines worked side by side Honduran engineers on different construction and restoration projects, and shared knowledge and experience on techniques including maintenance and operation of heavy equipment. (U.S Marine Corps photo by Cpl. Ian Ferro/Released)

Lance Cpl. Alex A. Dossantos (right), a supply administration and operations specialist with 4th Dental Battalion, 4th Marine Logistics Group, Marine Forces Reserve, takes a patient’s blood pressure readings under the supervision of Air Force Staff Sgt. Keri L. Christian (left), a medical training manager with 190th Medical Group, 190th Air Refueling Wing, Air National Guard, at Kauai Community College during Innovative Readiness Training Tropic Care 2016, June 25, 2016. Dossantos studies biology and psychology at the University of Georgia in Athens, Ga., and hopes to pursue a career in neurology. IRT Tropic Care 2016 is part of a civil and joint military program to improve military readiness while simultaneously providing quality services to underserved communities throughout the United States. (U.S. Marine Corps photo by Sgt. Ian Leones/Released) - Lance Cpl. Alex A. Dossantos (right), a supply administration and operations specialist with 4th Dental Battalion, 4th Marine Logistics Group, Marine Forces Reserve, takes a patient’s blood pressure readings under the supervision of Air Force Staff Sgt. Keri L. Christian (left), a medical training manager with 190th Medical Group, 190th Air Refueling Wing, Air National Guard, at Kauai Community College during Innovative Readiness Training Tropic Care 2016, June 25, 2016. Dossantos studies biology and psychology at the University of Georgia in Athens, Ga., and hopes to pursue a career in neurology. IRT Tropic Care 2016 is part of a civil and joint military program to improve military readiness while simultaneously providing quality services to underserved communities throughout the United States. (U.S. Marine Corps photo by Sgt. Ian Leones/Released)

Lance Cpl. Joshua P. Dipippo, a military policeman with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, takes cover during a patrolling exercise at the Muscatatuck Urban Training Center in Butlerville, Ind., June 9, 2016. Practicing patrol methods is important for Marines, so when faced with a real life scenario, they are prepared to accomplish the mission. (U.S. Marine Corps photo by Lance Cpl. Melissa Martens/ Released) - Lance Cpl. Joshua P. Dipippo, a military policeman with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, takes cover during a patrolling exercise at the Muscatatuck Urban Training Center in Butlerville, Ind., June 9, 2016. Practicing patrol methods is important for Marines, so when faced with a real life scenario, they are prepared to accomplish the mission. (U.S. Marine Corps photo by Lance Cpl. Melissa Martens/ Released)

Sgt. Caleb M. Krieg (left), a squad leader with Company C, 6th Engineer Support Battalion, 4th Marine Logistics Group, Marine Forces Reserve, assists commandos with 131 Commando Squadron Royal Engineers, British army, as they survey a parking lot construction site during exercise Red Dagger at Fort Indiantown Gap, Penn., June 11, 2016. As part of the exercise, the Marines and British commandos worked on various renovation and construction projects around the Army base. Exercise Red Dagger is a bilateral training exercise that gives Marines an opportunity to exchange tactics, techniques and procedures as well as build working relationships with their British counterparts. (U.S. Marine Corps photo by Sgt. Ian Leones/Released) - Sgt. Caleb M. Krieg (left), a squad leader with Company C, 6th Engineer Support Battalion, 4th Marine Logistics Group, Marine Forces Reserve, assists commandos with 131 Commando Squadron Royal Engineers, British army, as they survey a parking lot construction site during exercise Red Dagger at Fort Indiantown Gap, Penn., June 11, 2016. As part of the exercise, the Marines and British commandos worked on various renovation and construction projects around the Army base. Exercise Red Dagger is a bilateral training exercise that gives Marines an opportunity to exchange tactics, techniques and procedures as well as build working relationships with their British counterparts. (U.S. Marine Corps photo by Sgt. Ian Leones/Released)

Marines with Battery F, 2nd Battalion, 14th Marines, 4th Marine Division, Marine Forces Reserve fire a High Mobility Artillery Rocket System during their annual training at Fort Sill in Lawton, Okla., June 1, 2016. The surface to surface missile system can accurately engage targets over great distances. With high volumes of lethal rocket and missile fire, the HIMARS delivers precise strikes from over 40 miles away. The Reserve component has one of the two HIMARS detachments in the Marine Corps. - Marines with Battery F, 2nd Battalion, 14th Marines, 4th Marine Division, Marine Forces Reserve fire a High Mobility Artillery Rocket System during their annual training at Fort Sill in Lawton, Okla., June 1, 2016. The surface to surface missile system can accurately engage targets over great distances. With high volumes of lethal rocket and missile fire, the HIMARS delivers precise strikes from over 40 miles away. The Reserve component has one of the two HIMARS detachments in the Marine Corps.

Cpl. Joseph A. Myers, a military policeman with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, participates in the oleoresin capsicum qualification course during exercise Platinum Wolf 16 at Peacekeeping Operations Training Center South Base, Serbia, May 11, 2016. Exercise Platinum Wolf 16 is designed to seamlessly integrate Reserve Marines with the active component while demonstrating interoperability with partner nations in the region. (U.S. Marine Corps photo by Lance Cpl. Devan Alonzo Barnett) - Cpl. Joseph A. Myers, a military policeman with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, participates in the oleoresin capsicum qualification course during exercise Platinum Wolf 16 at Peacekeeping Operations Training Center South Base, Serbia, May 11, 2016. Exercise Platinum Wolf 16 is designed to seamlessly integrate Reserve Marines with the active component while demonstrating interoperability with partner nations in the region. (U.S. Marine Corps photo by Lance Cpl. Devan Alonzo Barnett)

Reserve Marines with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, practice striking while taking a class on crowd control during exercise Platinum Wolf 2016 at Peacekeeping Training Operations Center South Base in Bujanovac, Serbia, May 12, 2016. Platinum Wolf brings together service members from Bosnia, Bulgaria, Macedonia, Montenegro, Serbia, Slovenia, and the United States to train in peacekeeping operations and non-lethal weapons capabilities. (U.S. Marine Corps photo by Sgt. Sara Graham) - Reserve Marines with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, practice striking while taking a class on crowd control during exercise Platinum Wolf 2016 at Peacekeeping Training Operations Center South Base in Bujanovac, Serbia, May 12, 2016. Platinum Wolf brings together service members from Bosnia, Bulgaria, Macedonia, Montenegro, Serbia, Slovenia, and the United States to train in peacekeeping operations and non-lethal weapons capabilities. (U.S. Marine Corps photo by Sgt. Sara Graham)