150901-N-AX546-111 ODESA, Ukraine (Sept. 1, 2015) Cmdr. Charles Hampton, commanding officer, USS Donald Cook (DDG 75), left, explains the ship's mission to Ukrainian Prime Minister Arseniy Yatsenyuk, right, and U.S.-Ukraine officials during a tour of the ship as part of the Sea Breeze 2015 opening day ceremonies. Sea Breeze is an air, land and maritime exercise designed to improve maritime safety, security and stability in the Black Sea. (U.S. Navy photo by Mass Communication Specialist 1st Class Sean Spratt /Released)