200611-N-NO901-015 BALTIC SEA (June 11, 2020) A sailor onboard Royal Norwegian Navy Fridtjof Nansen-class frigate HNOMS Otto (F312) observes the Arleigh Burke-class guided-missile destroyer USS Donald Cook (DDG 75) during BALTOPS 2020, June 11, 2020. BALTOPS is the premier annual maritime-focused exercise in the Baltic region, enhancing flexibility and interoperability among allied and partner nations. (U.S. Navy photo courtesy of Standing NATO Maritime Group 1/Released)