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British Air Forces in France (BAFF) was a
Royal Air Force The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) an ...
(RAF) Command set up on 15 January 1940 under the command of Air Marshal Arthur Barratt, to provide unified command of the RAF in France. The Royal Air Force Component of the British Expeditionary Force (Air Component,
Air Vice-Marshal Air vice-marshal (AVM) is a two-star air officer rank which originated in and continues to be used by the Royal Air Force. The rank is also used by the air forces of many countries which have historical British influence and it is sometimes ...
Charles Blount) for air support of the British Expeditionary Force (BEF) and the
Advanced Air Striking Force The RAF Advanced Air Striking Force (AASF) comprised the light bombers of 1 Group RAF Bomber Command, which took part in the Battle of France during the Second World War. Before hostilities began, it had been agreed between the United Kingdom a ...
(AASF,
Air Vice-Marshal Air vice-marshal (AVM) is a two-star air officer rank which originated in and continues to be used by the Royal Air Force. The rank is also used by the air forces of many countries which have historical British influence and it is sometimes ...
Patrick Playfair Air Marshal Sir Patrick Henry Lyon Playfair, (22 November 1889 – 23 November 1974) was a commander in the Royal Flying Corps during the First World War and a senior commander in the Royal Air Force until his retirement during the Second World ...
) for independent
Bomber Command Bomber Command is an organisational military unit, generally subordinate to the air force of a country. The best known were in Britain and the United States. A Bomber Command is generally used for strategic bombing (although at times, e.g. during t ...
operations from French airfields. Barratt was charged with giving "full assurance" to the BEF of air support and to provide the BEF with Since the British held only a small part of the Western Front, Barratt must also operate in the context of the immediate needs of the Allies. In France the new arrangement worked well but the
War Office The War Office was a department of the British Government responsible for the administration of the British Army between 1857 and 1964, when its functions were transferred to the new Ministry of Defence (MoD). This article contains text from ...
and the Air Ministry never agreed on what support should be given to the
Field Force A field force in British and Indian Army military parlance is a combined arms land force operating under actual or assumed combat circumstances, usually for the length of a specific military campaign. It is used by other nations, but can have a di ...
of the BEF. The AASF consisted of RAF light bomber squadrons, based around
Rheims Reims ( , , ; also spelled Rheims in English) is the most populous city in the French department of Marne, and the 12th most populous city in France. The city lies northeast of Paris on the Vesle river, a tributary of the Aisne. Founded by ...
in France to be within range of the Ruhr, should the political decision be taken to begin strategic bombing. No decision had been taken before ''
Fall Gelb (Case Yellow), the invasion of France and the Low Countries , scope = Strategic , type = , location = South-west Netherlands, central Belgium, northern France , coordinates = , planned = 1940 , planned_by = Erich von ...
'' (Case Yellow), the German offensive in the west, began on 10 May 1940. The AASF bomber force was used instead against the German Army and its lines of communication. BAFF could also request RAF Bomber Command to provide support from medium bombers based in Britain. The headquarters of BAFF were at Chauny next to those of
François d'Astier de La Vigerie François d'Astier de La Vigerie (7 March 1886 – 9 October 1956) was a French military leader during two World Wars. His family were from Vivarais, and were ennobled in 1829 under the French Restoration. His father, le baron Raoul d'Astier ...
, the French air commander, to maximise co-operation between the BAFF and the ''
Armée de l'Air The French Air and Space Force (AAE) (french: Armée de l'air et de l'espace, ) is the air and space force of the French Armed Forces. It was the first military aviation force in history, formed in 1909 as the , a service arm of the French Arm ...
''. (BAFF HQ moved to Coulommiers, thence to Château Reze, Pornic on 16 June; AASF HQ was based at Château Polignac near Reims, moved to Troyes on 15 May, Muides near Blois on 3 June and Nantes on 10 June. The Air Component HQ was based at Marœuil, moved to Arras 9 May, Hazebrouck 16 May and returned to England on 21/22 May.)


Order of battle, 10 May page 2

BAFF were to be reinforced by four Hurricane squadrons, one to the AASF, when the German offensive started.


10–21 May page 3

BAFF was reinforced by four Hurricane squadrons as planned. The operational instructions issued by BAFF had stated that The AASF, when used against German troops and bridges, suffered many losses in the face of the large numbers of ''
Luftwaffe The ''Luftwaffe'' () was the aerial-warfare branch of the German ''Wehrmacht'' before and during World War II. Germany's military air arms during World War I, the ''Luftstreitkräfte'' of the Imperial Army and the '' Marine-Fliegerabtei ...
'' fighters and highly effective light anti-aircraft units protecting the bridges. By the end of 12 May, the number of serviceable bombers with the AASF had been reduced to 72 from 135. The
War Cabinet A war cabinet is a committee formed by a government in a time of war to efficiently and effectively conduct that war. It is usually a subset of the full executive cabinet of ministers, although it is quite common for a war cabinet to have senio ...
meeting that evening were warned by the Chief of Air Staff
Cyril Newall Marshal of the Royal Air Force Cyril Louis Norton Newall, 1st Baron Newall, (15 February 1886 – 30 November 1963) was a senior officer of the British Army and Royal Air Force. He commanded units of the Royal Flying Corps and Royal Air F ...
that the bomber losses had been disproportionate to the results achieved. On 14 May, the AASF made a maximum effort against pontoon bridges thrown across the
Meuse The Meuse ( , , , ; wa, Moûze ) or Maas ( , ; li, Maos or ) is a major European river, rising in France and flowing through Belgium and the Netherlands before draining into the North Sea from the Rhine–Meuse–Scheldt delta. It has a t ...
at Sedan and lost 40 out of 71 aircraft.Richards (1974), p.120. German air superiority led to more reinforcement with Hurricane squadrons. At the request of BAFF and the BEF, the equivalent of another two squadrons joined the Air Component on 13 May but this was only after much discussion by the
Chiefs of Staff Committee The Chiefs of Staff Committee (CSC) is composed of the most senior military personnel in the British Armed Forces who advise on operational military matters and the preparation and conduct of military operations. The committee consists of the C ...
and the
War Cabinet A war cabinet is a committee formed by a government in a time of war to efficiently and effectively conduct that war. It is usually a subset of the full executive cabinet of ministers, although it is quite common for a war cabinet to have senio ...
. The Chiefs of Staff Committee, meeting in the morning had advised that no further air support could be given on the Continent without unduly weakening the defence of Britain. Churchill, chairing the meeting, asked them to consider further what could be done and raised the matter again at the War Cabinet that evening. The Secretary of State for Air Sir
Archibald Sinclair Archibald Henry Macdonald Sinclair, 1st Viscount Thurso, (22 October 1890 – 15 June 1970), known as Sir Archibald Sinclair between 1912 and 1952, and often as Archie Sinclair, was a British politician and leader of the Liberal Party. Backgr ...
warned that whereas the Air Staff had estimated that 60 fighter squadrons were needed adequately to defend Britain, there were only 39. Churchill then accepted that it was not possible to send large numbers of fighters to France. On 14 May, the French Government requested another ten squadrons.Gilbert (1983), p.338. This request was discussed first at the Chief of Staffs Committee and then at War Cabinet; both decided against taking any immediate action. The Chief of Staffs Committee of 15 May discussed the matter again; accepted Air Chief Marshal Dowding's advice that sending more fighters would not achieve decisive results in France but would leave
Fighter Command RAF Fighter Command was one of the commands of the Royal Air Force. It was formed in 1936 to allow more specialised control of fighter aircraft. It served throughout the Second World War World War II or the Second World War, oft ...
too weak to defend Britain and decided against any further reinforcement. That of 16 May had a message from General
Maurice Gamelin Maurice Gustave Gamelin (, 20 September 1872 – 18 April 1958) was an army general in the French Army. Gamelin is remembered for his disastrous command (until 17 May 1940) of the French military during the Battle of France (10 May–22 June 1940 ...
, asking for ten fighter squadrons at once; if they did not come the battle would be lost. It reconsidered the matter and advised sending eight 'flights' (half-squadrons).Richards (1974), p.124. This was discussed and agreed at War Cabinet; Churchill wanted to send more squadrons but Sinclair advised that four squadrons was a maximum and even this was a very serious risk, taken contrary to the advice of Dowding. Churchill flew to Paris for discussions with the French Government and High Command. The discussion was acrimonious, with the French pressing for the full ten squadrons. Churchill urged the need to retain fighters to defend Britain and doubted if six more fighter squadrons would make a difference. The French disagreed,
Édouard Daladier Édouard Daladier (; 18 June 1884 – 10 October 1970) was a French Radical-Socialist (centre-left) politician, and the Prime Minister of France who signed the Munich Agreement before the outbreak of World War II. Daladier was born in Carpe ...
asserting that air cover would give French infantry the confidence needed to fight tanks.
Paul Reynaud Paul Reynaud (; 15 October 1878 – 21 September 1966) was a French politician and lawyer prominent in the interwar period, noted for his stances on economic liberalism and militant opposition to Germany. Reynaud opposed the Munich Agreement of ...
said the Allies had to choose between two risks, leaving English factories without fighter protection, like the French ones or seeing the Germans continue to advance on Paris. Churchill telegraphed the War Cabinet to explain that the situation was "grave in the last degree". Churchill wrote in a telegram from Paris, The War Cabinet, faced with this, agreed to the French demand. Newall warned that there were only six complete Hurricane squadrons left in the UK and/or advised that Air Component bases could only accommodate another three squadrons.Gilbert (1983), p.353. It was agreed that these squadrons were to fly to forward bases in the north of France each day; three in the morning, three in the afternoon. This brought the number of fighter squadrons in the Air Component up to thirteen. AASF bases and the BAFF headquarters were somewhat to the south of the German advance from Sedan to the Channel coast; the Air Component bases mostly north of it. By 17 May, the landline connections between BAFF and the Air Component had been lost and thereafter the Air Component operated as directed by Lord Gort and the Air Ministry. The German advance up the Channel coast overran Air Component bases, and the Air Component evacuated to southern England from 19 to 21 May.Richards (1974), p.125. Of the 261 fighters that had operated with the component, only 66 returned to England; 120 of the lost aircraft had suffered damage which under normal circumstances would have been repairable but made them unserviceable.


22 May – 22 June page 4

The Air Component, renamed the Back Component, no longer controlled any combat aircraft but its headquarters was used to co-ordinate RAF operations from English bases in support of the BEF and the Dunkirk evacuation; during the nine days the evacuation flew over 2,700 fighter sorties. The AASF and Barratt remained in France, retreating first to the Troyes area (16 May), then to the
Orléans Orléans (;"Orleans"
(US) and
Le Mans area (3 June). The provision of further reinforcements was discussed at the highest political levels, referred to by Churchill in his "
This was their finest hour "This was their finest hour" was a speech delivered by Winston Churchill to the House of Commons of the United Kingdom on 18 June 1940, just over a month after he took over as Prime Minister at the head of an all-party coalition government. It ...
" speech of 18 June, On 3 June, the War Cabinet discussed what the policy should be on sending further fighter squadrons to support the French. They accepted the advice of the Chiefs of Staff Committee that no more than six bomber squadrons and three fighter squadrons should be based in France.Gilbert (1983), p.456. Dowding supported this by noting that serviceable fighter strength in the UK was 224 Hurricanes and 280 Spitfires, warning that this meant that if the Germans were to mount a heavy attack on the UK, he could not guarantee air superiority for more than 48 hours. Sinclair added that the RAF was running short of fighter pilots and this was now the limiting factor.Richards (1983), p.156. Churchill reopened the discussion on 4 June, noting that the
Air Defence of Great Britain The Air Defence of Great Britain (ADGB) was a RAF command comprising substantial army and RAF elements responsible for the air defence of the British Isles. It lasted from 1925, following recommendations that the RAF take control of homeland air ...
now had 45 fighter squadrons and that according to Lord Beaverbrook (the
Minister of Aircraft Production The Minister of Aircraft Production was, from 1940 to 1945, the British government minister at the Ministry of Aircraft Production, one of the specialised supply ministries set up by the British Government during World War II. It was responsible ...
) there were more aircraft in Britain than before the start of the German offensive. Beaverbrook then gave more detailed figures for the period 19 May – 1 June: The War Cabinet had been told that French aircraft losses were running at 37 per day, with ten aircraft per day being produced domestically and imports from America averaging eight per day.Gilbert (1983), pp. 460–461, footnote 1. Sinclair countered that Fighter Command needed to recover its efficiency as well as its numerical strength; the squadrons were greatly disorganised and many of their finest leaders had been lost; Churchill did not press the matter further. On 5 June the Germans attacked the French line on the Somme; the French repeated their request for British fighter squadrons, asking for ten squadrons immediately, to be followed by another ten as soon as possible.Gilbert (1983), p.471. In response, two Hurricane squadrons were sent to join the AASF (7 May); four UK-based squadrons operated each day from aerodromes near Rouen, returning to Britain every night.Gilbert (1983), p.482. At the Defence Committee of 8 June Churchill argued that whereas the battle for France was important it would not be decisive; maintaining adequate fighter defences for the UK would be decisive. The Committee unanimously agreed with Churchill's conclusion that it would be fatal to yield to the French demands and jeopardise the safety of the UK. No further squadrons were sent and the AASF moved again to bases around the mouth of the
Loire The Loire (, also ; ; oc, Léger, ; la, Liger) is the longest river in France and the 171st longest in the world. With a length of , it drains , more than a fifth of France's land, while its average discharge is only half that of the Rhône ...
, eventually returning to the UK from 15 to 18 June.Richards (1974), map facing p.116. Large numbers of RAF personnel were evacuated by sea from various French ports in
Operation Aerial Operation Aerial was the evacuation of Allied forces and civilians from ports in western France from 15 to 25 June 1940 during the Second World War. The evacuation followed the Allied military collapse in the Battle of France against Nazi Germ ...
. An unknown number of them were lost off St Nazaire on 17 June, when the
troopship A troopship (also troop ship or troop transport or trooper) is a ship used to carry soldiers, either in peacetime or wartime. Troopships were often drafted from commercial shipping fleets, and were unable land troops directly on shore, typicall ...
HMT ''Lancastria'' was bombed and sunk by the ''Luftwaffe''. An estimated 800 RAF men had been sent down into the ship's holds, which were penetrated by three German bombs.Fenby, 2005, p. 133


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* {{DEFAULTSORT:British Air Forces In France Military units and formations established in 1940 Military units and formations of the Royal Air Force in World War II France–United Kingdom military relations