U.S. Marines clear a building during Military Operations on Urbanized Terrain training at Marine Corps Air Ground Combat Center - U.S. Marine Corps Pfc. Raul Arellano Jr. (left) and Pfc. Quinton Garrett (right), Company I, 3rd battalion, 7th Marine Regiment, clear a building during Military Operations on Urbanized Terrain training at Marine Corps Air Ground Combat Center, Twentynine Palms, Calif., June 24, 2019. The training was intended to enhance confidence and proficiency in the military skill sets needed for service members to operate in an urban environment. (U.S. Marine Corps Photo by Lance Cpl. Aaron Harshaw)