Marines and Sailors practice clearing rooms and detaining non-combatants as a part of the Raid Leaders Course at Marine Corps Base Camp Pendleton, Calif., Jan. 12, 2016. While the course emphasizes combat marksmanship fundamentals, Marines must be able to identify and properly handle non-combatants in urban military operations. The Marines participating in the training course are with Fox Company, 2nd Battalion, 4th Marine Corps Regiment. The Raid Leaders Course is run by Expeditionary Operations Training Group, I Marine Headquarters Group, I Marine Expeditionary Force. - Marines and Sailors practice clearing rooms and detaining non-combatants as a part of the Raid Leaders Course at Marine Corps Base Camp Pendleton, Calif., Jan. 12, 2016. While the course emphasizes combat marksmanship fundamentals, Marines must be able to identify and properly handle non-combatants in urban military operations. The Marines participating in the training course are with Fox Company, 2nd Battalion, 4th Marine Corps Regiment. The Raid Leaders Course is run by Expeditionary Operations Training Group, I Marine Headquarters Group, I Marine Expeditionary Force.

Corporal Ryan Harney, a team leader with 2nd Combat Engineer Battalion, 2nd Marine Division, and St. Charles, Mo. native, fires at an oppositional force member in the offense during Military Operations in Urban Terrain, or MOUT, training aboard Camp Lejeune, North Carolina, April 8, 2015. The training included Marines going out in squad-sized elements to attack an objective being held by Marines in the defensive position after the squad leaders built terrain models and informed their Marines on avenues of approach and objectives. (U.S. Marine Corps photo by Cpl. Krista James/Released) - Corporal Ryan Harney, a team leader with 2nd Combat Engineer Battalion, 2nd Marine Division, and St. Charles, Mo. native, fires at an oppositional force member in the offense during Military Operations in Urban Terrain, or MOUT, training aboard Camp Lejeune, North Carolina, April 8, 2015. The training included Marines going out in squad-sized elements to attack an objective being held by Marines in the defensive position after the squad leaders built terrain models and informed their Marines on avenues of approach and objectives. (U.S. Marine Corps photo by Cpl. Krista James/Released)

Republic of Korea and U.S. Marines clear a building during Korean Marine Exchange Program 15-17 Feb. 9 at the Cham Sae Mi Close-Quarters Battle Training Facility in Pohang, Republic of Korea. KMEP 15-17 is a regularly-scheduled, bilateral, small-unit training exercise, which enhances the combat readiness and interoperability of ROK and U.S. Marine Corps forces. The ROK Marines are with Company 5, 32nd Battalion, 1st ROK Marine Division. The U.S. Marines are with Company I, 3rd Battalion, 3rd Marine Regiment, currently assigned to 4th Marine Regiment, 3rd Marine Division, III Marine Expeditionary Force under the unit deployment program. - Republic of Korea and U.S. Marines clear a building during Korean Marine Exchange Program 15-17 Feb. 9 at the Cham Sae Mi Close-Quarters Battle Training Facility in Pohang, Republic of Korea. KMEP 15-17 is a regularly-scheduled, bilateral, small-unit training exercise, which enhances the combat readiness and interoperability of ROK and U.S. Marine Corps forces. The ROK Marines are with Company 5, 32nd Battalion, 1st ROK Marine Division. The U.S. Marines are with Company I, 3rd Battalion, 3rd Marine Regiment, currently assigned to 4th Marine Regiment, 3rd Marine Division, III Marine Expeditionary Force under the unit deployment program.