Themilitary history of Gibraltar during World War II exemplifiesGibraltar's position as aBritish fortress from the early-18th century onwards and as a vital factor in British military strategy, both as a foothold on thecontinent of Europe, and as a bastion ofBritish sea power.^[1] DuringWorld War II, Gibraltar served a vital role in both theAtlantic Theatre and theMediterranean Theatre, controlling virtually all naval traffic moving between theMediterranean Sea and theAtlantic Ocean.^[2]

In addition to its commanding position, Gibraltar provided a strongly-defended harbour from which ships could operate both in the Atlantic and in the Mediterranean. TheRoyal Navy'sForce H, under the command ofVice-Admiral James Somerville was based in Gibraltar and had the task of maintaining naval superiority and providing a strong escort for convoys to and from thebesieged island of Malta.^[3] During the course of the war, Gibraltar came under aerial bombardment fromVichy French aircraft and from aircraft of the Italian Royal Air Force (Regia Aeronautica) based onSardinia. Additionally, the fortress was the focus of underwater attacks by the Italian Royal Navy (Regia Marina)commandofrogman unit (Decima Flottiglia MAS) and theirhuman torpedoes. This Italian unit was based on the interned Italian shipSSOlterra in the nearby Spanish harbour ofAlgeciras.^[4] A number of attacks were also carried out by Spanish and Gibraltarian agents acting on behalf of the GermanAbwehr.

Inside theRock of Gibraltar itself, miles of tunnels were excavated from the limestone. Masses of rock were blasted out to build an "underground city".^[4] In huge man-made caverns, barracks, offices, and a fully-equipped hospital were constructed, complete with anoperating theatre andX-ray equipment.^[4]

Operation Torch, the Allied invasion ofFrench North Africa in November 1942, was coordinated from the"Rock".^[4] GeneralDwight D. Eisenhower, who was given command of the operation, set up his headquarters in Gibraltar during the planning phases of the operation.^[4] Following the successful completion of theNorth African campaign in May 1943 and thesurrender of Italy in September 1943, Gibraltar's role shifted from that of a forward operating base to that of a rear-area supply position. The harbour continued to operate dry-docks and supply depots for theconvoy routes through the Mediterranean untilV-E Day in 1945.

Military history of Gibraltar during World War II • Timeline of events • A Catalina flies by the North Front of the Rock as it leaves Gibraltar on a patrol, 1942 (Imperial War Museum)
Late 1939	Construction of asolid surface runway begins inGibraltar.
9 Sep 1939	No. 202 Squadron RAF is ordered to Gibraltar.
25 Sep 1939	No 200 (Coastal) Group is formed as a subordinate formation to HQ RAF Mediterranean.
Jun 1940	13,500civilian evacuees are shipped toCasablanca inFrench Morocco.
13 Jul 1940	Following the creation ofVichy France,Gibraltarian civilians are returned to Gibraltar prior to movement to other locations.
Jul 1940	Evacuees are shipped to the Atlantic island ofMadeira and toLondon.
9 Oct 1940	1,093 refugees re-evacuated toJamaica.
10 Mar 1941	Operation Felix, the German plan for the invasion of Gibraltar, is amended to becomeOperation Felix-Heinrich, which delays the invasion until after the fall of theSoviet Union, effectively putting an end to German invasion plans.
Late 1941	Plans for Operation Tracer, a stay-behind plan to be put in place in the event of an invasion of Gibraltar, are formulated.
Jan 1942	Equipment trials for Operation Tracer begin.
Mid-1942	Operation Tracer is pronounced ready for deployment.
Jul 1942	Lieutenant GeneralDwight D. Eisenhower is appointed Allied Commander-in-Chief ofOperation Torch.
5 Nov 1942	Eisenhower arrives in Gibraltar to take command
4 Jul 1942	ALiberator bomber fromRAF Transport Command takes off from Gibraltar and crashes, killingWładysław Sikorski, Polish military and political leader
Nov 1943	Resettlement Board established.
6 Apr 1944	First group of 1,367 repatriates arrives on Gibraltar directly from the United Kingdom.
28 May 1944	First repatriation party leaves Madeira for Gibraltar.
8 May 1945	Victory in Europe Day

The Second World War dramatically changed the lives of Gibraltarians.^[5] The decision toenforce mass evacuation in order to increase the strength of theRock with moremilitary andnaval personnel meant that most Gibraltarians (some for up to ten years) had nowhere to call 'home'.^[5] Only those civilians with essential jobs were allowed to stay but it gave the entire community a sense of being 'British' by sharing in the war effort.^[5]

In early June 1940, about 13,500 evacuees were shipped toCasablanca inFrench Morocco. However, following thecapitulation of the French to theGerman armies later in June 1940, the new Pro-German French Vichy Government found the presence of Gibraltarian evacuees in Casablanca an embarrassment and sought opportunities for their removal.^[5] The opportunity soon arose when 15 Britishcargo vessels arrived under Commodore Crichton, repatriating 15,000 French servicemen who had been rescued fromDunkirk.^[5] Once their own rescued servicemen had disembarked, the ships were interned until they agreed to take away all the evacuees.^[5] Although Crichton was unable to obtain permission to clean and restock his ships (and contrary toBritish Admiralty orders which forbade the taking on of evacuees), when he saw the mass of civilians pouring through the dockyards, he opened up his gangways for boarding.^[5] Just beforehand, the British fleet had destroyed a number of French warships atMers el-Kebir in order to prevent them ending up in German hands. The attack, during which 1,297 French sailors died, led to high tensions, which were evident when families were forced at bayonet point by French troops to board taking only what they could carry, leaving many possessions behind. However, when they arrived at Gibraltar, thegovernor would not allow them to land, fearing that once the evacuees were back on the Rock, it would be virtually impossible to evacuate them a second time.^[6] Crowds gathered inJohn Mackintosh Square in the centre of Gibraltar as the news broke, speeches were made and twocity councillors accompanied by the acting president of the exchange and commercial library went to see the governor (SirClive Liddell) to ask that the evacuees be allowed to land.^[7] After receiving instructions fromLondon, a landing was allowed as long as the evacuees returned when other ships arrived to take them away from the Rock, and by 13 July the re-evacuation back to Gibraltar had been completed.^[7]

Britishconservative politicianOliver Stanley agreed to accept the evacuees in the United Kingdom, but he argued with Gibraltar over the number of people involved.^[7] The Governor, he declared, had given the number of evacuees first as 13,000, then as 14,000 and finally as 16,000.^[8] He asked for the situation to be clarified, stressing the shortage of accommodation in Britain and insisting that only 13,000 could be accepted, 2,000 of whom were to be sent to thePortuguese Atlantic island ofMadeira.^[7] The situation, replied General Liddell on 19 July, "is that this is a fortress liable to heavy and immediate attack and there should be no civilians here whereas there are 22,000.^[7] The 13,000 was the number sent toMorocco, and more would have been sent had the situation there not altered."^[7] In London the evacuees were placed in the hands of theMinistry of Health, and many were housed inKensington area.^[7] Concern for them in Gibraltar mounted as the air raids against London intensified, coupled with the arrival of harrowing letters, describing the circumstances in which the evacuees were living.^[9]

In September rumours were already circulating among the evacuees, and in Gibraltar, that the possibility of re-evacuating the Gibraltarians once more was being mooted, this time the destination beingJamaica, in theWest Indies. After much contention, it was decided to send a party directly from Gibraltar to the island, and 1,093 evacuees left for Jamaica direct, on 9 October, with more following later on. However, petitions followed and the demands were met, partly for strategic reasons and the lack of available shipping. The situation at the end of 1940, therefore, was that approximately 2,000 evacuees were in Jamaica and a lesser number in Madeira, with the bulk of around 10,000 housed in the London area.^[10]

Construction of a solid surface runway began in late 1939 and in 1940 it was proposed to extend the existing runway to a length of 1,550 yards (1,417 m).^[11] The land reclamation commenced towards the end of 1941 along with the construction of an RAF camp at the "North Front", nowRAF Gibraltar.^[11] The RAF dispatched their next squadron to Gibraltar at this time and it was in September 1939 that war with Germany was declared and the strong possibility ofGerman submarines concentrating in theStrait of Gibraltar and using Spanish port facilities, loomed large in Admiralty thinking.^[11] So at 09:00 (UTC) on 9 September 1939,No. 202 Squadron RAF was ordered to Gibraltar, loaded to the gunwales with equipment.^[11]

On 25 September 1939,No. 200 (Coastal) Group RAF was formed as a subordinate formation to HQ RAF Mediterranean in control of No 202 Squadron.^[12] The Group's function was the control ofRoyal Air Force units operating from Gibraltar.^[12] In late 1940 the Group was transferred toCoastal Command.^[12] Later a combinedheadquarters was formed which commenced operations in early 1942.^[11]

On 19 June 1940 the Spanish leaderFrancisco Franco offered to bring Spain into the war on the side of Germany, then on 18 July 1940 Franco declared that Spain had 2,000,000 soldiers ready to retake Gibraltar and expand Spanish interests in North Africa. Nothing came of these threats as Spain realised how well defended Gibraltar was and the economic effects of a blockade of Spanish ports, especially on oil imports, so they pulled back the offer of being willing to enter the war on the side of theAxis forces.^[13]

On 18 July 1940, after theattack on the French Fleet at Mers-el-Kébir by the British, the Vichy government authorized a bombing raid ofGibraltar as a response. Little damage was reported to have been done but caused the first casualties.^[14] The attack was half-hearted and the majority of the bombs were deliberately dropped short of their target.^[15] However, one soldier and four civilians were killed in the bombing.^[16]

On 24 September, theItalianStefaninews agency reported: "As a reprisal for thebombardment of Dakar yesterday morning, one-hundred-and-twenty French aircraft based inMorocco attacked Gibraltar." On the same day, theUnited Press Agency reported: "The French government has issued an official denial of reports, according to which French aircraft were said to have attacked Gibraltar. Up until now, no reprisals have been undertaken." But the United Press report ended on an ominous note with: "French reprisals are imminent."^[17]

Again, on the same day, theVichy French government issued orders for the naval base and city of Gibraltar to be bombarded. As a result, six bomber squadrons of theVichy French Air Force (Armée de l'Air de Vichy) and four squadrons of theVichy French Navy (Marine nationale de Vichy) were employed in the operation. The 64 bombers flew from bases inOran,Tafaroui (inAlgeria),Meknes, Mediouna, andPort Lyautey (in Morocco). The French action was approved by both theGerman Armistice Commission and theItalian Armistice Commission.^[18]

The French dropped 150 bombs on Gibraltar during the raid.^[19] They inflicted heavy damage on the fortress and encountered no British aircraft while doing so. TheSouth Mole and a large ship in the harbour were heavily damaged. In the northern part of Gibraltar, fires broke out.^[18] However, most of the Vichy bombs again fell into the sea.^[19]

On 25 September, the French returned with a larger force of eighty-three bombers to cause additional damage to the naval base and harbour installations. Again, aircraft of theBritish Royal Air Force made no appearance. However, the French crews did report encountering heavyanti-aircraft fire. OneLeO 451 bomber was lost and 13 other aircraft were lightly damaged during the two days of bombing attacks.^[18] The Britisharmed trawlerHMT Stella Sirius was sunk by bombs, and several civilians were killed.^[20][21] The Vichy authorities made it clear that bombing raids of Gibraltar would continue as long as the British continued to attack Dakar.^[21]

The air attack on 25 September was the last by Vichy forces on Gibraltar.

For the aerial attack on the harbour of Gibraltar forces are to be designated which will guarantee abundant success. For the subsequent operations against naval objectives and for support of the attack of the Rock mainly dive bombers units are to be transferred to Spain. Sufficient anti-aircraft artillery is to be allocated to the army units including its use against ground targets.^[22]

The Rock came through the war relatively unscathed but, given its strategic importance,Germany made plans to capture Gibraltar.^[23]Codenamed "Felix", the plan, which was signed byAdolf Hitler himself, was formulated at the highest level of command.^[23] With or without permission, Germany would take entry through Spain and attack Gibraltar, driving the British out of the Western Mediterranean.^[23] TheStrait would be effectively closed to the Allies once Gibraltar was in German hands, forcing Asia-bound Allied shipping to steam all the way around Africa rather than to proceed to the east via the shorter route through the Mediterranean and theSuez Canal.^[23] The Rock was to be heavily dive bombed by planes leaving France but landing afterward at Spanish air bases.^[23] To deny a possible Spanish capture of the base, the German planners decided that the final attack to seize Gibraltar was to be made by German troops alone.^[23]

Diplomatic failure at the highest levels of government (Meeting at Hendaye) prevented the operation, which had been drawn up in detail by the Wehrmacht in the summer and autumn of 1940, from occurring at the beginning of 1941.^[26]

GeneralLudwig Kübler's XLIX Corps would conduct the actual attack on the Rock.^[26] The assault forces would comprise theInfantry Regiment Großdeutschland, the 98th Regiment of the1st Mountain Division, 26 medium and heavy artillery battalions, three observation battalions, three engineer battalions, two smoke battalions, a detachment of 150Brandenburgers, and up to 150 miniature remote controlled demolition vehicles (Goliaths), packed with high explosives.^[26]

As part of a combined-force operation, the German Air Force (Luftwaffe) would contributeJu 88As, Stukas,Messerschmitts, three light AA battalions, and three heavy AA battalions.^[23][26]Nazi Germany'sKriegsmarine would cooperate by usingU-boats to interfere with British naval movement and emplacing coastal batteries to further discourage the Royal Navy.^[23][26]

On 10 March 1941, withOperation Barbarossa looming, Felix was amended toOperation Felix-Heinrich,^[23] whereby German troops would be withdrawn from the USSR to capture Gibraltar. As a result of Spanish dictatorFrancisco Franco's intransigence, the operation was postponed, modified, and ultimately abandoned.^[23][26]

FromSardinia, ItalianPiaggio P.108 bombers attacked Gibraltar several times, mainly in 1942. The last raids on Gibraltar were duringOperation Torch, when the same bombers also attackedOran.

The only unit of theRegia Aeronautica (Royal Air Force) ever to fly the Piaggio P.108 was the "274th Long-Range Bombardment Squadron". This unit was formed in May 1941 around the first machines that came off the assembly lines. The training of the crews lasted far longer than anticipated and only in June 1942 the 274th became operational. The most spectacular raids with the P. 108 bombers were flown in October 1942 when several night attacks against Gibraltar were undertaken from Sardinia.

After thearmistice of Cassibile (8 September), the German-alliedItalian Social Republic launched at least two raids on Gibraltar: one on the night of 4–5 June 1944 with tenSM.79bis aircraft and another on 6 June with nine aircraft. Both sorties were undertaken by the Gruppo Aerosiluranti "Buscaglia–Faggioni".^[27]

Known as the "Floating Trojan Horse of Gibraltar",^[28]Decima Flottiglia MAS, an Italiancommandofrogman unit created during thefascist government, engaged in numerous attacks against the harbour at Gibraltar.

Gibraltar was a very tempting target for the Italians, who saw it as a refuge for British warships and allied merchant shipping.^[28] The Italian frogmen originally used a Spanish villa (Villa Carmela) located two miles (3 km) from Gibraltar owned by an Italian officer who had married a Spanish woman named Conchita Ramognino.^[28] Their base was shifted later to the Italian tankerSSOlterra, interned inAlgeciras.^[4]

Lesser known than the Italian actions were the sabotage operations andlimpet-mine attacks carried out by Spanish and Gibraltarian agents recruited in theCampo de Gibraltar by the Germans. TheAbwehr contacted a Spanish staff officer from Campo de Gibraltar, Lieutenant Colonel Eleuterio Sánchez Rubio, a Spanish officer, member ofFalange and coordinator of the intelligence operations in the Campo,^[31] to establish a network of saboteurs with access to Gibraltar. Sánchez Rubio designated Emilio Plazas Tejera, also a member of Falange, as operations chief of the organisation.^[32] Most of the recruits for the sabotage operations were Spaniards from the Campo. A combination of financial reward, ideological commitment and some threats and intimidation were used to gather a significant number of agents. According to the British intelligence, there were at least 183 Spaniards and Gibraltarians involved in the espionage and sabotage operations against Gibraltar.^[33]

Sabotage operations were ordered fromBerlin in the late autumn of 1940, but actual work did not start until early 1941. The first operations were unsuccessful. A first attempt to smuggle a bomb into Gibraltar was aborted, as the timing device was faulty.^[34] In February there was a large explosion in the North Tunnel, and in April a bomb blew up near the airfield.^[35] In June 1941, however, the British intelligence foiled a new attempt, by a German agent, to attach a mine alongside an Allied cargo ship. Another attempt failed when Plazas placed a bomb inside an ammunition store but was not able to prime the explosive. It was not until 1942 that the operations begun to succeed. In January 1942, two Spanish agents managed to destroy two aircraft at the North Front landing strip.^[34]

Financed, trained and equipped by the Germans, the Spanish saboteurs sank the armed trawlerHMT Erin, and destroyed the auxiliary minesweeperHMT Honjo, which resulted in the deaths of an officer from the carrierHMSArgus and six British ratings on 18 January 1942.^[36][37][38] Plazas was assisted by the Spanish naval commander ofPuente Mayorga, Manuel Romero Hume, who allowed him to beach arowboat there. The British intelligence was able however to counteract the sabotage operations. In March 1942, a Gibraltarian, José Key, one of the most prominent agents working for the Germans, responsible for the collection of information on military movements for theAbwehr was arrested and executed inWandsworth Prison in late 1942.^[39] By September 1942, Plazas, whose activities were closely monitored by the British at that time, resigned and left Carlos Calvo, his second in command, in charge of the operations.^[32] In late 1942, the German headquarters in Berlin ordered the sabotage operations being expanded. In early 1943, the arrival of an experienced head ofAbwehr operations in Spain improved the outreach of the operations.

In March 1943 an ammunition dump was blown up by Calvo's agents. The British, growing suspicious of some of the saboteurs, banned them from entering Gibraltar. This forced theAbwehr to ask Calvo for new personnel. A Spaniard working on the Rock, José Martín Muñoz, was responsible for the explosion and fire at a large fuel tank atCoaling Island on 30 June 1943. This mission, however, would be the first and the last for Muñoz, because he was cornered and arrested by British authorities in August, when he tried to smuggle a bomb into a weapons magazine insideRagged Staff Cave.^[40] After being sentenced to death as a saboteur, he washanged on 11 January 1944 in Gibraltar by British executionerAlbert Pierrepoint. A member of an unrelatedAbwehr sabotage network, Luis López Cordón-Cuenca (also arrested in 1943) was executed by Pierrepoint on the same day. Calvo himself was put under arrest by the Spanish police and neutralized. He would be a free man again in December, when he rejoined theAbwehr inMadrid, under direct orders of Wolfgang Blaum, aka Baumann, head of the sabotage section in Spain.^[32] After a Falangist attempt against the life of pro-allied GeneralJosé Enrique Varela, perpetrated by Sánchez Rubio network's agent Juan José Domínguez and a meeting betweenAnthony Eden and the Spanish ambassador in London,Jacobo Fitz-James Stuart,Abwehr activities around Gibraltar came to an end.^[41]

Operation Tracer was a top-secret Britishstay-behind spying mission that was only to be implemented if Gibraltar was captured by the Axis Powers.^[42] Six men were to be sealed in a cave and left with enough supplies for 7 years. The volunteers—two doctors, three signalmen and their leader—would run an observation post with one 12-inch (300 mm) by 6-inch (150 mm) slit looking over the harbour and a concealed outdoor terrace over the Mediterranean. The team would then wire back all shipping movements to theBritish Admiralty.^[43]

They were told there would be no way out and anyone who died within the chamber would have to be embalmed and cemented into the brick floor.^[43]

As the threat of invasion was clearly felt in late 1941, an idea for a series of secret observation posts (first in Gibraltar and later in other places likeMalta andAden) was put together underOperation Tracer.^[43]

Work in Gibraltar began immediately under Commander Geoffrey Birley and his chief engineer Colonel Fordham. The site chosen atLord Airey's Battery on the southern tip of the Rock already had an existing tunnelling scheme for ashelter.^[43] Extensive trials of the equipment began in January 1942 under the eye ofMI6 radio expert ColonelRichard Gambier-Parry. Much thought was also given to the type of men needed for such a strange and demanding task.^[43] A member ofScott’s ill-fatedexpedition to the Antarctic,George Murray Levick was called up as Surgeon-Commander to advise on survival techniques.^[43] There were practical matters such as diet, exercise, sanitation, and clothing to consider as well as vital "psychology of the personnel".^[43] The full team was in place by the end of summer 1942 and their cavern fully equipped and ready for occupation.^[43] A comprehensive manual was prepared on all aspects of the operation and it was considered that similar secret lookout posts should be prepared throughout the world in the event of future wars. However, Operation Tracer was never needed, asAdolf Hitler turned his attention away from Gibraltar and towards theEastern Front.^[43]

The operation had been clouded in mystery until the discovery of papers at thePublic Record Office inKew UK.^[43] Previously in the 1960s, details of the story were told to a journalist by his intelligence service contacts and he wrote these up as "Operation Monkey", yet facts were very sparse.^[43]

In 1997 "Stay Behind Cave" (as it was nicknamed) was discovered in Gibraltar by theGibraltar Caving Group,^[43] but no account was ever obtained from anyone associated with the mission.^[43] The discovery came about when the group encountered a strong gust of wind in a tunnel. Further searching led them to break through a wall into chambers which had never been used and had remained sealed for over 50 years.^[43]

In November 2006 Jim Crone and Sergeant Major Pete Jackson, senior tunnel guide with theRoyal Gibraltar Regiment, met possibly the only member of Operation Tracer still alive when they travelled to meet Dr.W. A. Bruce Cooper at his home in England.^[43] Cooper, 92 at the time, provided an opportunity to shed light on the operation with his direct involvement in the mission as aSurgeon-Lieutenant in theRoyal Navy Volunteer Reserve (RNVR).^[43] He recalled stories about his colleagues, his training, and his feelings about the task.^[44]

TheMediterranean U-boat Campaign lasted approximately from 21 September 1941 to May 1944. TheKriegsmarine tried to isolateGibraltar,Malta, andSuez and disruptBritain's trade routes. More than sixtyU-boats were sent to intercept Allied shipping in the Mediterranean Sea. Many of these U-boats were themselves attacked negotiating theStrait of Gibraltar controlled by Britain. Nine U-boats were sunk while attempting passage and ten more were damaged.

Plans for the Allied counter offensive after theattack on Pearl Harbor were ongoing by mid-1942.^[45] An invasion of Europe in 1943 was thought unworkable, but the allies could attack the "soft underbelly of Europe" through theMediterranean, asPrime MinisterWinston Churchill put it.^[45] Devised byPresidentFranklin Roosevelt and Churchill and code namedOperation Torch, the plan was to occupy French North Africa:Morocco,Algeria, andTunisia. From these French colonies, attacks could be launched that would drive Italy out of the war.^[45]

In July 1942,Lieutenant GeneralDwight D. Eisenhower^[I] was appointed Allied Commander-in-Chief of Operation Torch.^[45] Churchill placed Gibraltar under the command of General Eisenhower as the temporary headquarters for this, the first large-scale Anglo-American operation of the war.^[45] He arrived in Gibraltar on 5 November 1942 to take over, not just command of Operation Torch itself, but also military command of Gibraltar.^[45]

General Eisenhower stayed atThe Convent, the officialgovernor's residence, but his operational headquarters were in a small chamber in a tunnel in the heart of the Rock.^[45] In his memoirs General Eisenhower wrote:

The subterranean passages under the Rock provided the sole available office space, and in them was located the signal equipment by which we expected to keep in touch with the commanders of the three assault forces. The eternal darkness of the tunnels was here and there partially pierced by feeble electric bulbs. Damp, cold air in block-long passages was heavy with stagnation and did not noticeably respond to the clattering efforts of electric fans. Through the arched ceilings came a constant drip, drip, drip of surface water that faithfully but drearily ticked off the seconds of the interminable, almost unendurable, wait which always occurs between completion of a military plan and the moment action begins.^[45]

One hundred thousand soldiers on the high seas in a multitude of transports converged on Gibraltar.^[45] More than 400 aircraft of all types were crammed into the dispersal areas around the Gibraltar runway.^[46] Fighters had been shipped in crates and assembled on the airfield.^[5] Every available area of storage was taken up withammunition, fuel, and other essential supplies. 168 American pilots were housed in theRAF messes atNorth Front.^[45]

On 8 November 1942, 466 aircraft from Gibraltar landed on captured North African airfields.

From their headquarters in Gibraltar, General Eisenhower and Admiral SirAndrew Browne Cunningham^[III] directed Operation Torch, the first major combined combat operation during World War II involving American and British forces.^[45]

Given that Gibraltar was a small town with only a few defences protecting it, the solution was to build a massive series of tunnels and chambers inside the natural protection of theRock of Gibraltar.^[47] This "town" inside the Rock contained its own power station, water supply, and hospital.^[47] Some soldiers posted here would not see the light of day for months on end. Two Canadian engineer companies, the only soldiers with diamond-tipped drills and 5 British engineer companies, added some 30 miles (48 km) of such tunnels, a feat thought impossible at the time. That was enough to hold all 30,000 troops on the rock. Today, the rock has more tunnels than roads.

On 4 July 1943, aLiberator bomber fromRAF Transport Command took off from Gibraltar for England.^[48] On board was GeneralWładysław Sikorski,Prime Minister ofPoland's London-basedgovernment in exile andCommander-in-Chief of its armed forces, returning from visiting Polish troops in the Middle East.^[48]

The aircraft climbed normally from the runway, levelled off to gather speed but then suddenly lost height and crashed into the harbour.^[48] The 62-year-old general died, along with 15 others.^[48] The sole survivor was the Czech-born pilot,Eduard Prchal, who was rescued by an RAF launch.^[48] The bodies of five passengers and crew, including Sikorski's daughter, were never found.^[48]

The coffins of General Sikorski and his Chief-of-Staff, General Kilimecki, were draped in the Polish National Flag and lay in state in theCathedral of St. Mary the Crowned.^[49] After aRequiem Mass, the bodies were carried in procession to H.M. Dockyard with full Military Honours to be shipped to London in anticipation that General Sikorski's remains would one day be returned to a liberated Poland.^[49] The route to the dockyard was lined by British troops and the coffins carried and escorted by Polish Servicemen.^[49]

In 1943 a British Court of Inquiry investigated the crash of Sikorski'sLiberator IIAL523, but was unable to determine the probable cause, finding only that it was an accident^[50] and the "aircraft became uncontrollable for reasons which cannot be established". A popular theory was insufficient technical maintenance leading to jamming aircraft controls.^[51] Despite the court's finding, the political context of the event, coupled with a variety of curious circumstances, immediately gave rise to speculation that Sikorski's death had been no accident, and may in fact have been the direct result of a Soviet, British or even Polish conspiracy.^[52]

The surrender of Italy in September 1943 lifted any possible objections to the return of the evacuees to the Rock.^[7] As a result, a Resettlement Board was established in November, and at a meeting of the Board on 8 February 1944repatriation priorities were finally agreed.^[7] On 6 April 1944 the first group of 1,367 repatriates arrived on the Rock directly from the United Kingdom and on 28 May, the first repatriation party left Madeira, and by the end of 1944 only 520 non-priority evacuees remained on the island.^[7]

In London, home-comers were making claims on the evacuees’ wartime accommodation and 500 Gibraltarians were re-evacuated to Scotland and 3,000 to camps inNorthern Ireland.^[46] Although the governor, Lt. General Sir Noel Mason-MacFarlane, fought valiantly on behalf of the evacuees and did not accept the lack of accommodation as a sufficient reason for the delays.^[46] As late as 1947 there were still 2,000 in Northern Irish camps.^[46] The last of the evacuees did not see the Rock again until 1951.^[46]

• Military history of the British Commonwealth in the Second World War
• Spain during World War II

• Finlayson, Thomas James (1991).The Fortress Came First: Story of the Civilian Population of Gibraltar During the Second World War. Gibraltar Books.ISBN 0-948466-12-X.
• Jackson, William (1990).The Rock of the Gibraltarians. A History of Gibraltar (2nd ed.). Grendon, Northamptonshire, UK: Gibraltar Books.ISBN 0-948466-14-6. General Sir William Jackson wasGovernor of Gibraltar between 1978 and 1982, a military historian and former Chairman of theFriends of Gibraltar Heritage Society.
• Rankin, Nicholas (2017).Defending the Rock: How Gibraltar Defeated Hitler. London: Faber. p. 672.ISBN 9780571307708.

Gingell, Joe (2011). We Thank God and England. A collection of memorabilia about the evacuation of the Gibraltar civilian population 1940–1951.Gibraltar National Archives.

Gingell, Joe (2018). Between the Devil and the Deep Blue Sea. A collection of memorabilia about the evacuation of the Gibraltar civilian population 1940–1951.Gibraltar National Archives.

• Media related toGibraltar in World War II at Wikimedia Commons

• Mediterranean theatre of World War II
• Gibraltar in World War II
• World War II military history by country
• Military of Gibraltar
• World War II strategic bombing conducted by Italy
• Military history of the British Empire and Commonwealth in World War II
• Military history of the Mediterranean

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