U.S. Marine Corps Lance Cpl. Paul Whidden, a mortarman assigned to Weapons Platoon, Alpha Company, 1st Battalion, 3rd Marine Regiment, uses a rusted barrel to build a barricade during a night raid at a MOUT town aboard Marine Corps Training Area Bellows (MCTAB), April 17, 2015. Alpha Company was acting as the opposing force located within MOUT towns for Charlie Company to conduct company sized night raids in preparation for Operation Lava Viper. (U.S. Marine Corps photo by Lance Cpl. Aaron S. Patterson/Released)