CARTAGENA, Colombia (Aug. 31, 2018) - Commander, U.S. Naval Forces Southern Command/U.S. 4th Fleet, Rear Adm. Sean Buck delivers remarks during the opening ceremony for UNITAS LIX. The overarching goal of UNITAS LIX is to develop and test command and conrol of forces at sea with multinational maritime forces, training in a wide spectrum of maritime operations. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Hendricks/Released)