A Ukrainian official likened Russian President Vladimir Putin to Nazi leader Adolf Hitler for visiting the scene of his crimes in Mariupol, one of the cities heavily destroyed in Ukraine since the war began last February. "Another dictator also visited Mariupol once. We know how his story ended. ?: Hitler visiting Army Group South HQ at Mariupol, Ukraine in December 1941. 'Many historians and contemporaries claim that it was here that Hitler first realized the war was lost' - WarHistoryOnline," Anton Gerashchenko, adviser to the Minister of Internal Affairs of Ukraine, wrote on Twitter on Sunday. Mariupol, a strategic seaport...