Two U.S. warships have entered the Black Sea for multinational exercises dubbed Sea Breeze 2018.<br /> The American Fleet battleship USS Porter entered the waters on Friday and was joined by the U.S. Navy's flagship USS Mount Whitney the day after.<br />The U.S. Naval Forces Europe said Sea Breeze 2018 is aimed at enhancing regional maritime stability, as well as strengthening combined readiness and naval capability among NATO allies and partners.<br />The drills will be held in the Odesa and Mykolaiv regions as well as the north-western part of the Black Sea from Monday through to the 21st. <br />