Admiral Sir David John Hallifax, KCB, KCVO, KBE (3 September 1927 – 23 August 1992) was a senior Royal Navy officer who served as Constable and Governor of Windsor Castle from 1988 until 1992.
[1] Following an appointment to the Ministry of Defence as Director of Naval Operational Requirements, he became Flag Officer First Flotilla, a position once held by his father.
It was from here that he went to the Northwood Headquarters as Chief of Staff to Admiral Sir John Fieldhouse, Commander-in-Chief Fleet in 1980.
[1] As Chief of Staff he was responsible for the day-to-day control of the Headquarters during the Falklands War.
His next appointment was to the United States of America as the NATO Deputy Supreme Allied Commander Atlantic in 1982.