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| Advanced Landing Ground | |
|---|---|
| Name | Advanced Landing Ground |
| Type | Temporary airfield |
| Used | 1943–1945 |
| Controlledby | United States Army Air Forces, Royal Air Force |
| Battles | Operation Overlord, Operation Market Garden, Battle of the Bulge |
Advanced Landing Ground
Advanced Landing Ground facilities were temporary wartime airstrips established in the United Kingdom and on the European Theatre of World War II to support tactical air operations. Conceived to provide rapid forward basing for fighters and fighter-bombers, these sites enabled Royal Air Force and United States Army Air Forces units to operate closer to frontlines during campaigns such as Operation Overlord and Operation Market Garden. Their creation involved coordination among engineering formations from the Royal Engineers, United States Army Corps of Engineers, and aviation commands including Air Chief Marshal Arthur Tedder’s headquarters.
Advanced Landing Grounds were short-lived, austere airfields designed for expeditionary use by units like the IX Tactical Air Command, 84 Group RAF, and Ninth Air Force. Constructed in England, France, Belgium, and Germany, they hosted aircraft such as the Supermarine Spitfire, North American P-51 Mustang, Republic P-47 Thunderbolt, and Hawker Typhoon. Command and control often rotated among formations including No. 83 Group RAF, XIX Tactical Air Command, and the Royal Canadian Air Force. Supply and logistics required links to transportation hubs like Southampton, Le Havre, and Antwerp.
Development traces to contingency planning after the Dieppe Raid and evaluations following the Battle of Britain. Allied doctrinal shifts during the Combined Bomber Offensive and the Strategic Bombing Campaign emphasized close air support and interdiction, prompting leaders such as Sir Arthur Harris and Air Chief Marshal Trafford Leigh-Mallory to adapt basing concepts. The Washington Conference and inter-Allied staff talks led to standardization of airfield specifications adopted by the Supreme Headquarters Allied Expeditionary Force under General Dwight D. Eisenhower. Engineers drew on experience from campaigns in the North African Campaign and Italian Campaign to refine rapid-construction techniques.
Construction techniques combined prefabricated materials like Pierced Steel Planking and compacted earthworks executed by units such as the Engineer Special Brigade and Royal Pioneer Corps. Typical layout included a single runway 3,000–5,000 feet long, dispersal pans, fuel and ammunition dumps, and tented billeting for squadrons detached from bases like RAF Biggin Hill and RAF Lympne. Air traffic control was rudimentary, relying on mobile control towers and ground signals developed by Royal Air Force Regiment detachments. Engineers coordinated with transport formations including the Red Ball Express and depots such as Basingstoke Ordnance Depot for resupply. Airfield hygiene and camouflage used techniques learned from Operation Torch.
Advanced Landing Grounds hosted squadrons from the Royal Air Force, United States Army Air Forces, Royal Canadian Air Force, and Polish Air Forces in exile. Units rotated rapidly: examples include No. 131 (Polish) Wing RAF, 354th Fighter Group (United States), and 402 Squadron RCAF. Missions flown from these sites included close air support during the Battle of Caen, interdiction in the Falaise Pocket, and escorts supporting Operation Plunder. Command structures linked advancing ground formations such as the British Second Army, U.S. First Army, and Canadian First Army to air assets, shaping combined-arms operations exemplified at Caen and Arnhem. Medical evacuation and casualty evacuation were supported by liaison with formations like the Royal Army Medical Corps.
Prominent examples included forward fields near Suffolk used during Operation Overlord, and ALG sites in Normandy supporting Second Tactical Air Force operations. Specific locations such as airstrips around Bény-sur-Mer, Cricqueville-en-Bessin, and Le Havre became hubs for fighter-reconnaissance and ground-attack sorties. In the Low Countries, ALGs near Grimbergen and Sint-Truiden provided bases for missions during Operation Market Garden and the Battle of the Bulge. In Germany, forward landing grounds supported drives to the Rhine and operations tied to the Rhineland Campaign.
After Victory in Europe Day, many sites were dismantled, returned to agriculture, or converted into permanent aerodromes such as RAF Coltishall and civil airfields near Le Touquet. Surviving traces influenced postwar airfield engineering doctrine within organizations like the Royal Air Force and United States Air Force (USAF). Memorials near former ALG locations commemorate formations like the 84 Group RAF and the Ninth Air Force, while archival collections in institutions such as the Imperial War Museum and National Archives (United Kingdom) preserve construction plans and operational records. The ALG concept informed later expeditionary basing in conflicts involving the United Nations and NATO operations.
Category:Airfields of World War II