Steelworker 3rd Class Kyle McConiga (left) and Utilitiesman Constructionman Brandon Dye, both assigned to Naval Mobile Construction Battalion (NMCB) 11, bleed air out of the Lightweight Water Purification System (LWPS) during Exercise Valiant Shield 2016 in Tinian, Commonwealth of the Northern Marianas Islands (CNMI), Sept. 13, 2016. Valiant Shield is a biennial, U.S. Air Force, Navy and Marine Corps exercise held in Guam, focusing on real-world proficiency in sustaining joint forces at sea, in the air, on land and in cyberspace. (U.S. Navy Combat Camera photo by Mass Communication Specialist 1st Class Benjamin A. Lewis/Released)