Lance Cpl. Tanner J. Clayson, Expeditionary Airfield Systems Technician, Marine Wing Support Squadron 372, pounds an aluminum panel into place during a refurbishing project on the Strategic Expeditionary Landing Field at Camp Wilson, March 23, 2015. Clayson is one of eight Marines who came from Marine Corps Base Camp Pendleton to help with the work on the SELF. (Official Marine Corps photo by Pfc. Levi Schultz/Released) - Lance Cpl. Tanner J. Clayson, Expeditionary Airfield Systems Technician, Marine Wing Support Squadron 372, pounds an aluminum panel into place during a refurbishing project on the Strategic Expeditionary Landing Field at Camp Wilson, March 23, 2015. Clayson is one of eight Marines who came from Marine Corps Base Camp Pendleton to help with the work on the SELF. (Official Marine Corps photo by Pfc. Levi Schultz/Released)