From http://www.kingstonguardian.co.uk/news/features/display.var.462004.0.force_of_the_phantom.php
Dipping into Daniel’s rich archive, it’s evident that one of the most interesting army groups in the Park was “Phantom”, the code name of the ultra-secret GHQ Liaison Regiment. This was, and still is, one of the least known of the wartime special regiments.
It was created in France in 1939 with the specific task of pinpointing the changing locations of “bomb lines” i.e. the battle areas not occupied by Allied troops, and therefore suitable targets for bombs and shells.
Soon it was a vital link between forward patrols and command headquarters all over Europe, keeping the British, Canadians and Americans precisely informed of what their forward troops were doing, and the enemy’s reaction.
Phantom was composed of volunteers, all men of outstanding personality, plus exceptional linguistic and motor cycling skills, and a rigorous training in Morse code and radio communication.
Their task of collecting information was difficult and dangerous, for they had to travel fast in battlefront areas, over roads often mined, or infested with snipers.
“An adventurous, determined, forceful personality was essential if the right information was to be obtained,” an officer recalled.
Thus it was a vibrant group who centred on Richmond when the Richmond Hill Hotel and Pembroke Lodge were requisitioned to serve as Phantom’s regimental HQ and officers’ mess, with the park itself as the primary training ground.
One of them was Major David Niven, who commanded A Squadron and before and after the war was an international film star.
Others later reached the top of their professions as academics, politicians, athletes, jockeys (including Sir Gordon Richards), diplomats, lawyers and captains of industry.
The driving force was the Commanding Officer, Lt Col G F Hopkinson, known to all as “Hoppy”.
Phantom had been disbanded after the Dunkirk evacuation, but Hoppy was determined it should be re-formed.
He got permission to recruit 48 officers and 407 other ranks, to set up a pigeon loft with 500 birds for rapid despatch of intelligence, and to acquire high speed vehicles. Then he began a relentless training campaign.
For example, he accustomed Phantom to rise in the middle of the night to begin a complete working day, or to work non-stop for two days and a night or to work all night and sleep in the day conditions they were likely to encounter on active service.
He also subjected them to gruelling runs, and icy swims in the park’s ponds, and made sure they learnt to transmit and receive Morse messages, with total accuracy, for hours on end at a speed of 30 words a minute.
During the Blitz, when more than 400 bombs fell on the park, he forbade his men to shelter in slit trenches because “taking cover could make cowards”, Early in 1941, Phantom sent a squadron to Greece, where many men were lost. Later that year five officers and 52 other ranks went to the Middle East, where they learnt the art of desert navigation and survival before operating with various units in the Eighth Army.
During 1941 and 1942, Phantom maintained detachments in various parts of the UK, where they could give early warning of German invasion. By then the regiment was 900 strong, and sent detachments to Palestine, Iraq, Syria and various parts of Europe, where several died.
By 1944 Phantom’s reputation was so high that the SAS, Canadians, Americans, Free French and Poles wanted detachments working with them.
Phantom was especially valuable in France, notably when the Falaise pocket was closed, and the German forces were surrounded and annihilated by converging British, Canadian and American troops.
Without Phantom there to identify the exact position of the Allies, casualties from so-called “friendly fire” would have been far greater.
The regiment was disbanded in 1947, but re-born two years later as Army Phantom Signals Regiment.
In 1960, following great advances in technology, it ceased to be.
Phantom Sig Regt provided comms for many SF type jobs including the Auxillaries (see Britains Secret Army thread), SAS and other commandos.
It was also used to broadcast fake traffic around Dover in conjuntion with the “inflatable” army that was being assembled there to convince the Germans that Calias was the intended beechhead.