APRA HARBOR, Guam (Dec. 21, 2021) Divers from the Republic of Korea Navy (ROKN) Underwater Construction Team (UCT) conduct underwater exothermic cutting during the Multinational Underwater Repair Exercise (MUREX) 2021 in Apra Harbor, Guam, Dec. 21, 2021. This is the first-ever MUREX, an exercise designed to develop interoperability in underwater construction operations, build diving expertise, and foster comradery between the ROKN UCT and the U.S. Navy’s UCT-2 and Mobile Diving and Salvage Unit One (MDSU-1). (Courtesy photo by the Republic of Korea Navy)