200608-N-BM428-0465 BALTIC SEA (June 8, 2020) The Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75) participates in exercise Baltic Operations (BALTOPS) 2020 while in the Baltic Sea, June 8, 2020. BALTOPS is the premier annual maritime-focused exercise in the Baltic Region, marking the 49th year of one of the largest exercises in Northern Europe enhancing flexibility and interoperability among allied and partner nations. (U.S. Navy photo by Mass Communication Specialist 1st Class Kyle Steckler/Released)