A NATO flotilla -- including a 15-ship task force representing 10 nations -- is in the North Atlantic this week for an integrated air and missile defense demonstration, Formidable Shield 2021, to assess allied interoperability and command-and-control structures against subsonic, supersonic and ballistic missile threats. Four major events are planned as part of the "at sea demonstration" led by U.S. 6th Fleet in waters near the U.K. Ministry of Defence's Hebrides Range located on the Western Isles of Scotland. The...