Marines assigned to the Urban Leaders Course at 1st Marine Division Schools, I Marine Expeditionary Force, prepare to clear a building during a live-fire training exercise aboard Marine Corps Base Camp Pendleton, Calif., Sept. 25, 2015. The class teaches fire team and squad leaders skills and tactics to be successful in urban environments, which they can share with the Marines they lead and the leadership of their entire unit. - Marines assigned to the Urban Leaders Course at 1st Marine Division Schools, I Marine Expeditionary Force, prepare to clear a building during a live-fire training exercise aboard Marine Corps Base Camp Pendleton, Calif., Sept. 25, 2015. The class teaches fire team and squad leaders skills and tactics to be successful in urban environments, which they can share with the Marines they lead and the leadership of their entire unit.