Brigadier General Daniel D. Yoo, the 1st Marine Division assistant division commander, is briefed at the flightline aboard Marine Corps Air Ground Combat Center Twentynine Palms, Calif., in preparation for an upcoming mission during Exercise Desert Scimitar 2015, April 11, 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.