191010-N-UB406-0055 GULF OF CADIZ (Oct. 10, 2019) NATO Allied forces transit the Gulf of Cadiz during a photo exercise as part of Dynamic Mariner 2019 as seen from the U.S. Navy guided-missile destroyer USS Gridley (DDG 101). The NATO Maritime Command-led Dynamic Mariner/Flotex 19 (DYMR/FL19) is an exercise that tests NATO's Response Force Maritime Component and enhances the flexibility and interoperability amongst Allied nations. DYMR/FL19 involves ships, submarines, aircraft and personnel from fifteen Allied nations converging off the coast of Spain. (U.S. Navy photo by Mass Communication Specialist 2nd Class Cameron Stoner/Released)