180503-N-PQ607-1106 ST. AUGUSTINE, Fla. (May 2, 2018) Rear Adm. Sean Buck, commander of U.S. Naval Forces Southern Command/U.S. 4th Fleet and Rear Adm. Alexandre Augusto Amaral Dias da Cruz, Brazilian navy deputy chief of operations, conclude the annual Maritime Staff Talks (MST) by signing the agreed upon minutes during the closing ceremony at Castillo de San Marcos. MST supports the U.S. global maritime strategy by building and strengthening working partnerships with regional partners by improving interoperability through face-to-face meetings. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael Hendricks/Released)