Lieutenant Col. David J. Hart, commanding officer of 1st Battalion, 7th Marine Regiment, 1st Marine Division, explains to the Marines of Company C the importance of aggressiveness of action before conducting a notional Tactical Recovery of Aircraft and Personnel mission during Exercise Desert Scimitar, April 10, 2015. Desert Scimitar is designed to provide tough, realistic live-fire training that allows the 1st Marine Division to maintain readiness, improve combat effectiveness and meet current and real-world operational demands.