FILE PHOTO: Russian sailors line up on board the diesel-electric submarine “Novorossiysk” during a rehearsal for the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2019. REUTERS/Alexey Pavlishak/File Photo
FILE PHOTO: Russian sailors line up on board the diesel-electric submarine “Novorossiysk” during a rehearsal for the Navy Day parade in the Black Sea port of Sevastopol, Crimea July 26, 2019. REUTERS/Alexey Pavlishak/File Photo