Lance Cpl. Ismael Renteria, a heavy equipment operator with Special Purpose Marine Air-Ground Task Force - Southern Command, operates a TRAM 624KR Tractor during a command post exercise at Camp Lejeune, North Carolina, April 6, 2020. The CPX increases readiness and challenges SPMAGTF-SC command and control, communications and timely decision-making capabilities through simulated real-world scenarios. SPMAGTF-SC will be deployed into the Southern Command area of operation to provide crisis response preparedness efforts, security cooperation training and engineering events to help strengthen relations with partner nations throughout Central and South America. Renteria is a native of Atwater, California. (U.S. Marine Corps photo by Sgt. Andy O. Martinez)