CAMP LEJEUNE, N.C. – Capt. Phoebe D. Riner, the staff judge advocate with the Command Element, Special Purpose Marine Air-Ground Task Force - Southern Command, explains the rules of engagement to Marines and sailors during General Exercise 2 at Marine Corps Base Camp Lejeune, North Carolina, April 29, 2017. The Marines simulated a noncombatant evacuation operation in order to prepare for crisis response situations they could face during their deployment to Central America. (U.S. Marine Corps photo by Sgt. Ian Leones) - CAMP LEJEUNE, N.C. – Capt. Phoebe D. Riner, the staff judge advocate with the Command Element, Special Purpose Marine Air-Ground Task Force - Southern Command, explains the rules of engagement to Marines and sailors during General Exercise 2 at Marine Corps Base Camp Lejeune, North Carolina, April 29, 2017. The Marines simulated a noncombatant evacuation operation in order to prepare for crisis response situations they could face during their deployment to Central America. (U.S. Marine Corps photo by Sgt. Ian Leones)

Cpl. Steven Dejong, a field radio operator with Special Purpose Marine Air-Ground Task Force - Southern Command, guides Sgt. Travis Nichols, a cyber network operator with SPMAGTF-SC, in a movement to contact drill on a Table 5 short distance range during pre-deployment training at Range K-501A aboard Marine Corps Base Camp Lejeune, North Carolina, March 16, 2017. The training was conducted to enhance the Ground Combat Element’s readiness for future security cooperation operations in Central America. (U.S. Marine Corps photo by Cpl. Melissa Martens/ Released) - Cpl. Steven Dejong, a field radio operator with Special Purpose Marine Air-Ground Task Force - Southern Command, guides Sgt. Travis Nichols, a cyber network operator with SPMAGTF-SC, in a movement to contact drill on a Table 5 short distance range during pre-deployment training at Range K-501A aboard Marine Corps Base Camp Lejeune, North Carolina, March 16, 2017. The training was conducted to enhance the Ground Combat Element’s readiness for future security cooperation operations in Central America. (U.S. Marine Corps photo by Cpl. Melissa Martens/ Released)