In 1920 reorganization of the Naval Staff led to the Assistant Chief of Naval Staff becoming responsible for tactical policy and including ships and weapons development this led to the creation of a tactical section which he superintended. In December 1928 it absorbed the some of the Torpedo Division and continued to function until 1939 at the beginning of World War Two when it was abolished. The division was reformed under a new name the Tactical and Weapons Policy Division in 1958. It survived the merger of the Admiralty into the Ministry of Defence in April 1964 until 1965 when its name was changed again to the Directorate Naval Tactical and Weapons Policy but now it was part of the Naval Staff, Ministry of Defence, (Navy Department). The directorate continued to operate until 1968 when it was abolished.Mackie. p.32.
