By the Editor: Is USN-RN cooperation alive and well or more political window dressing? The author demonstrates the former from his perspective and experiences at the tactical level. But there are gaps and the author goes on to challenge other readers to cover how cooperation is developing at the operational and strategic levels. On 10 December 2014, the then First Sea Lord, Admiral Sir George Zambellas signed, along with the US Chief of Naval Operations Admiral Jonathan W. Greenert, a document titled Combined Seapower: A shared vision for Royal Navy-United States Navy Cooperation 1 (henceforth…