Russian, Indian warships to train engaging weapons / Russian warship spotted in English Channel with sailors manning machine guns / Vladimir Putin publicly taunts UK as Russian frigate stages war games in English Channel / Russian frigate carrying hypersonic weapons embarks on first deployment in distant waters / Russian warships, plane arrives in Cuba after Atlantic missile drills / Tsirkon hypersonic weapons in service with Russian naval ships -- defense firm / Why are Russian warships in Cuba? / Russian warships in Cuba are no threat, US says / Russian navy fleet, including frigate, nuclear-powered sub, arrives in Cuba / Russian warships arrive in Cuba to conduct military drills