U.S. Marines with Echo Company, 2d Battalion, 1st Marines,

U.S. Marines with Echo Company, 2d Battalion, 1st Marines, attached to 4th Marine Regiment, conduct company attack MOUT training on range 230 during Service Level Training Exercise 1-21 at Marine Corps Air Ground Combat Center Twentynine Palms, California, Oct. 14, 2020. 2d Battalion, 1st Marines conducted MOUT training in preparation for Maneuver Warfare Exercise, demonstrating their technical and tactical proficiency during the regiment’s operations. Marines are not required to wear masks during some training events due to the extreme heat and moisture build up that reduces mask effectiveness.
(U.S. Marine Corps photo by Lance Cpl. Juan Carpanzano)