APRA HARBOR, Guam (Dec. 20, 2021) Divers from the Republic of Korea Navy (ROKN) Underwater Construction Team (UCT) and the U.S. Navy’s Underwater Construction Team Two (UCT-2) perform underwater welding during the Multinational Underwater Repair Exercise (MUREX) 2021 in Apra Harbor, Guam, Dec. 20, 2021. This is the first-ever MUREX, an exercise designed to develop interoperability in underwater construction operations, build diving expertise, and foster camaraderie 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)