Marine Corps Cpl. Andrew Contreras, operations non-commissioned officer with Marine Light Attack Helicopter Squadron 773, Marine Aircraft Group 49, 4th Marine Aircraft Wing, Marine Forces Reserve, leads a core workout for Naval Reserve Officers Training Corps midshipmen at Tulane University in New Orleans, Sept. 20, 2017. Marines from MARFORRES led morning workouts for midshipmen, providing a tough and realistic training environment to better prepare them for Officer Candidate School and for their future military careers. (U.S. Marine Corps photo by Lance Cpl. Niles Lee/Released)