Senior Airman Gilbert Julien, 8th Civil Engineering Squadron Structures journeyman, secures a concrete through coupler at Kunsan Air Base, Republic of Korea, Oct. 6, 2016. 8th CES members are responsible for maintaining water treatment facilities throughout the base. These facilities provide airmen with potable water so they are continually able to Defend the Base, Accept Follow-On Forces and Take the Fight North. (U.S. Air Force photo by Senior Airman Michael Hunsaker/Released)