U.S. Marine Corps Lance Cpl. Dondrell McCallon with

U.S. Marine Corps Lance Cpl. Dondrell McCallon with 2nd Combat Engineer Battalion, currently attached to 3rd Battalion, 6th Marine Regiment, currently assigned to 4th Marine Regiment, 3rd Marine Division under the Unit Deployment Program, fires a charge during an urban-breaching range on Exercise Fuji Viper, at Combined Arms Training Center, Camp Fuji, June 11, 2019. Marines train in urban-breaching to increase proficiency in house-to-house style fighting. (U.S. Marine Corps photo by Lance Cpl. Joshua Sechser)