Landing crafts of the Russian Navy's Caspian Flotilla sail along the Don River in Rostov-on-Don
Landing crafts of the Russian Navy's Caspian Flotilla sail past a cruise ship on the Don River during the inter-fleet move from the Caspian Sea to the Black Sea, in Rostov-on-Don, Russia April 13, 2021. REUTERS/Sergey Pivovarov