Warfighting

U.S. Marine Corps Lance Cpl. Jesper Yan, left; Lance Cpl. Marc Hargrove, center, and Pfc. Brendan Howells, right, all base security with Marine Wing Support Squadron 471, Marine Aircraft Group 41, 4th Marine Aircraft Wing, guard an entrance at Canadian Forces Base Cold Lake, Canada, June 19, 2019, in support of Sentinel Edge 19. Training exercises, such as SE19, ensure Reserve Marines are proficient and capable of successful integration with active-duty Marines, making MARFORRES critical to the Marine Corps’ Total Force. (U.S. Marine Corps photo by Lance Cpl. Jose Gonzalez)