Putin Sends Warships To Just 25 Miles From US Coast: Russian Navy Drills In Atlantic Amid Ukraine War.  Russia's northern fleet conducted high-precision weapons exercises in the Atlantic Ocean while en route to Cuba. Four Russian naval vessels reached Havana port on June 12, putting the US on alert. According to the Russian Defense Ministry, Russia's most modern frigate, Admiral Gorshkov, a hypersonic missile carrier accompanying nuclear submarine Kazan and two other naval vessels, hit targets located at a distance of more than 600 km.