Auxiliary Air Force Regiment. In the following two years or so, the Auxiliary Fighter Control Units associated with them were also disbanded. On 16 March 1960, the Air Commodore-in-Chief and His Royal Highness Prince Philip, Duke of Edinburgh, invited the Squadron Commanders and Flight Commanders of all the disbanded Royal Auxiliary Air Force units to a reception at Buckingham Palace. All were given the following letter from the Air Commodore-in-Chief: The renaissance of the RAuxAF began in 1959 with the formation of three Maritime Headquarters Units and one Maritime Support Unit. The MSU in Belfast was short-lived, but No 1 (County of Hertford) MHU in Northwood, No 2 (City of Edinburgh) MHU in Edinburgh and No 3 (County of Devon) MHU in Mountbatten continued in existence until No 3 was amalgamated into No 1 in 1999. Later that year No 1 was renumbered 600 (City of London) Squadron and No 2 was renumbered 603 (City of Edinburgh) Squadron. These three units formed the entirety of the RAuxAF for twenty years until expansion starting in 1979, with the formation of three Regiment Field Squadrons, continuing with a Movements Squadron in 1982, and, following lessons learned during the Falklands conflict, an Aeromedical Evacuation Squadron in 1983. A later addition, in 1987, was an auxiliary element (The Grampian Troop) formed within a regular RAF Regiment Rapier Air Defence Squadron. Another step forward was taken in 1986, with the raising of four Defence Force Flights with the role of ground defence of key points on air bases. In 1984, the RAuxAF's Diamond Jubilee was marked by the award to the Service of its own badge, which forms the basic motif of the Sovereign's Colour for the Royal Auxiliary Force presented by Her Majesty the Queen in 1989. The words of the badge motto are COMITAMUR AD ASTRA – Latin "We go with them to the stars". Gulf War and beyond During the Gulf War in 1991, the Aeromedical and Movements Squadrons were mobilised and performed with great distinction in theatre and at other locations in the UK and overseas. On 5 April 1997, all of the four war-appointable flights of the then Royal Air Force Volunteer Reserve were fully amalgamated into the RAuxAF, each with squadron status. In recognition of their origins, and in the absence of direct county or city territorial affiliations, they were each given the honour of retaining the letters "VR"