Marines with Combat Logistics Regiment-1 set concertina wire to aid in securing the unit’s combat operations center during Exercise Desert Scimitar 2015 aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., April 9, 2015. Desert Scimitar ensures 1st Marine Division units remain committed to consistently improving the quality of their training efforts and their resultant warfighting capabilities. Simultaneously, it offers participating units the opportunity to hone their conventional warfighting skills.