Bombing of Guernica The bombing of Guernica ( 26 April 1937 ) was an aerial attack on the Basque town of Guernica , Spain , causing widespread destruction and civilian deaths during the Spanish Civil War . The raid by planes of the German Luftwaffe " Condor Legion " and the Italian Fascist Aviazione Legionaria was called Operation Rügen . The bombing is considered one of the first raids in the history of modern military aviation on a defenseless civilian population , although Madrid had been bombed many times previously . The number of victims of the attack is still disputed ; the Basque government reported 1 , 654 people killed , although modern figures suggest between 126 ( later revised by the authors of the study to 153 ) to 400 civilians died . Russian archives reveal 800 deaths on 1 May 1937 , but this number may not include victims who later died of their injuries in hospitals or whose bodies were discovered buried in the rubble . The bombing was the subject of a famous anti - war painting by Pablo Picasso . It was also depicted in a woodcut by the German artist Heinz Kiwitz , who was later killed fighting in the International Brigades . The bombing shocked and inspired many other artists , including a sculpture by René Iché , one of the first electroacoustic music pieces by Patrick Ascione , of a musical composition by René - Louis Baron and a poem by Paul Eluard ( " Victory of Guernica " ) . There is also a short film from 1950 by Alain Resnais entitled " Guernica " . Guernica . Guernica ( Gernika in Basque , and officially Gernika - Lumo since 1983 ) , in the Basque province of Biscay , and 30 kilometres east of Bilbao , has long been a centre of great significance to the Basque people . Its Gernikako Arbola ( " the tree of Gernika " in Basque ) is an oak tree that symbolizes traditional freedoms for the Biscayan people and , by extension , for the Basque people as a whole . Not only was Guernica considered the identity of Basque , but it was also considered the spiritual capital of Basque people . Guernica has always been celebrated , as the home of Basque liberties . Guernica was also the location of the Spanish weapons manufacturer Astra - Unceta y Cía , which had been a supplier of firearms to the Spanish military and police forces since 1912 . As a major domestic supplier of arms to the Government , its capture would deny the Republican Army an important source of weapons . At the time of the bombing , the population of Guernica was 7 , 000 people , and the battlefront was 30 kilometres away . Military situation . Advances by Nationalist troops led by Generalísimo Francisco Franco had eaten into the territory controlled by the Republican Government . The Basque Government , an autonomous regional administrative body formed by Basque nationalists and leftists , sought to defend Biscay and parts of Guipuzcoa with its own light Basque Army . At the time of the raid , Guernica represented a focal strategic point for the Republican forces . It stood between the Nationalists and capture of Bilbao . Bilbao was seen as key to bringing the war to a conclusion in the north of Spain . Guernica also was the path of retreat for the Republicans from the northeast of Biscay . Prior to the Condor Legion raid , the town had not been directly involved in the fighting , although Republican forces were in the area ; 23 battalions of Basque army troops were at the front east of Guernica . The town also housed two Basque army battalions , although it had no static air defences , and it was thought that no air cover could be expected due to recent losses of the Republican Air Force . Market Day . Monday 26 April was market day , there were more than 10 , 000 people in the former Basque capital . Generally speaking , a market day would have attracted people from the surrounding areas to Guernica to conduct business . Market days consisted of local farmers bringing in their crops to sell to the village people . They would bring the crops of the week ’ s labour to the main square , which is where the market was held . The raid also took place on a Monday , ordinarily a market day in Guernica . There is still historical debate over whether a market was being held that particular Monday : the Basque government had , prior to the bombing , ordered a general halt to markets to prevent blockage of roads , and restricted large meetings . There is common doubt , however , that the directive had been received by all areas , including Guernica , at the time of the raid . It is accepted by most historians that Monday " . . . would have been a market day " . Luftwaffe doctrine , 1933 – 42 . James Corum states that a prevalent view about the " Luftwaffe " and its " Blitzkrieg " operations was that it had a doctrine of terror bombing , in which civilians were deliberately targeted in order to break the will or aid the collapse of an enemy . After the bombing of Guernica in 1937 and of Rotterdam in 1940 , it was commonly assumed that terror bombing was a part of " Luftwaffe " doctrine . During the interwar period the " Luftwaffe " leadership officially rejected the concept of terror bombing , and confined the air arms use to battlefield support of interdiction operations . Despite that " official " position , the " Luftwaffe " practiced " terror bombing " over Madrid from the autumn of 1936 as well as against Malaga civilian refugees in February 1937 , probably for " experimental " purposes . It should be fairly noticed from Soviet " Telefonica " of anti - aircraft defence HQ war diaries , that not all civilian deaths were victims of terror bombing . Some victims living in the southwest of Madrid were due to " collateral damage " of the battlefront vicinity . Some Francoist aviation raids that were directed against strategic targets as railway stations and factories , invariably provoked a number of civilian victims since it took place in high density populated neighborhoods . Some others clearly classified as " deterrence " raids , in politically correct adviser terms , were ostentatiously " terror bombing " ones . It was particularly the case of the whole night raids over the Spanish capital , with the exception of those led against Republican airfields . General Walther Wever compiled a doctrine known as " The Conduct of the Aerial War " in 1935 . In this document , which the " Luftwaffe " adopted , the " Luftwaffe " rejected Giulio Douhet ' s theory of terror bombing . Terror bombing was deemed to be " counter - productive " , increasing rather than destroying the enemy ' s will to resist . Such bombing campaigns were regarded as diversion from the " Luftwaffe ' s " main operations , destruction of the enemy armed forces . According to Corum , the bombings of Guernica , Rotterdam and Warsaw were tactical missions in support of military operations and were not intended as strategic terror attacks . The raid . The Condor Legion was entirely under the command of the Nationalist forces . The order to perform the raid was transmitted to the commanding officer of the Condor Legion , Oberstleutnant Wolfram Freiherr von Richthofen , from the Spanish Nationalist Command . Mission planning . While questions are often raised over the intent of the raid , the diaries of the planner and commander of the mission made public in the 1970s indicate that an attack on Guernica represented part of a wider Nationalist advance in the area and was also designed to support Franco ' s forces already in place . It has been said that Richthofen , understanding the strategic importance of the town in the advance on Bilbao and restricting Republican retreat , ordered an attack against the roads and bridge in the Renteria suburb . Destruction of the bridge was considered the primary objective since the raid was to operate in conjunction with Nationalist troop movements against Republicans around Marquina . Secondary objectives were restriction of Republican traffic / equipment movements and the prevention of bridge repair via the creation of rubble around the bridge . On 22 March 1937 Franco started to put his plan into action , starting with his air chief , General Kindelan . The German army would first take the Guadalajara front . Italians then would be restructured at Palencia . From there two new divisions were formed . General Emilio Mola would start the campaign against the Basques . All Nationalist equipment was sent to the north front to support Mola . The main reason to attack first from the north was the suspicion that it could be overthrown quickly . Mola wanted to make this fight quick ; he let the Basque people know that if they wanted to surrender he would spare their lives and homes . On 31 March Mola ’ s threat was put into action and the fighting began in Durango . Condor Legion persuaded Franco to send troops to go north and to be led by General Emilio Mola . 31 March 1937 , Mola attacked Vizcaya province , as well as bombing Durango by the Condor Legion . Republicans put up a tough fight against the German troops , but eventually were forced back . Many refugees traveled to Guernica for safety , about a thousand people turned to Guernica . On 25 April , Mola sent a warning to Franco saying that he was planning a mighty blow on Guernica . Resistance against this attack was useless , to all Basques they should surrender and their lives maybe spared . To meet these objectives , two Heinkel He 111 s , one Dornier Do 17 , eighteen Ju 52 " Behelfsbomber " , and three Italian SM . 79s ( Corpo Truppe Volontarie ) were assigned for the mission . These were armed with medium high explosive bombs ( 250 kg ) , light explosive bombs ( 50 kg ) and incendiaries ( 1 kg ) . The ordnance load for the twenty four bombers was twenty - two tons in total . A follow up to the bombing raid was also planned for the next day involving Messerschmitt Bf 109 raids in the area . The order was noted on 26 April by Richthofen as : Starting at once : A / 88 and J / 88 for free fighter bomber mission on the streets near Marquina - Guernica - Guerriciaz . K / 88 ( after Returning from Guerriciaz ) , VB / 88 and Italians for the streets and the bridge ( including suburb ) east of Guernica . There we have to close the traffic , if we finally want a decision against personal and material of the enemy . Vigon agrees to move his troops for blocking all streets south of Guernica . If this succeeds , we will have trapped the enemy around Marquina . First five waves of raid . Wave one arrived over Guernica around 1630 hrs . A Dornier Do 17 , coming from the south , dropped approximately twelve 50 - kilogram bombs . The three Italian SM . 79s had taken off from Soria at 1530 hrs with orders to " bomb the road and bridge to the east of Guernica , in order to block the enemy retreat " during wave two . Their orders explicitly stated not to bomb the town itself . During a single sixty second pass over the town , from north to south , the SM . 79 ' s dropped thirty - six light explosive bombs ( 50 kg ) . Vidal says that at this point , the damage to the town was " relatively limited . . . confined to a few buildings " , including the church of San Juan and headquarters of the " Izquierda Republicana " ( " Republican Left " ) political party . Waves three through five of the first attack then occurred , ending around 1800 hrs . The third wave consisted of a Heinkel He 111 escorted by five Aviazione Legionaria Fiat fighters led by Capitano Corrado Ricci . Waves four and five were carried out by German twin - engined planes . Vidal notes : " If the aerial attacks had stopped at that moment , for a town that until then had maintained its distance from the convulsions of war , it would have been a totally disproportionate and insufferable punishment . However , the biggest operation was yet to come . " Subsequent raids . Earlier , around noon that day , the Junkers Ju 52s of the Condor Legion had carried out a mission around Guerriciaz ( Gerrikaraiz ) . Following this they landed to rearm and then took off to complete the raid on Guernica . The attack would run from north to south , coming from the Bay of Biscay and up the course of the Urdaibai estuary . The 1st and 2nd Squadrons of the Condor Legion took off at about 1630 hrs , with the 3rd Squadron taking off from Burgos a few minutes later . They were escorted from Vitoria by a squadron of Fiat fighters and Messerschmitt Bf 109Bs of Lutzow squadron , for a total of twenty - nine planes . From 1830 to 1845 hrs , each of the three bomber squadrons attacked in a formation of three Ju 52s abreast — an attack front of about 150 metres . At the same time , and continuing for around fifteen minutes after the bombing wave , the Bf 109Bs and Heinkel He 51 biplanes strafed the roads leading out of town , adding to civilian casualties . Outcome . The bombing shattered the city ' s defenders ' will to resist , allowing the rebel Nationalists to overrun it . This indirectly supported Douhet ' s theory , which expected this result . The rebels faced little resistance and took complete control of the town by 29 April . The attacks destroyed the majority of Guernica . Three quarters of the city ' s buildings were reported completely destroyed , and most others sustained damage . Among infrastructure spared were the arms factories " Unceta and Company " and " Talleres de Guernica " along with the Assembly House " Casa de Juntas " and the Gernikako Arbola . Richthofen recorded that the bridge was not destroyed or even hit during the raid . Since the Luftwaffe was then operating on Wever ' s theory of bombing as a military action , the mission was considered a failure as a result . However , the rubble and chaos that the raid created severely restricted the movement of Republican forces . Since his appointment on the northern front , the Soviet aviation advisor Arjénoukhine had insistently called for air reinforcements , motivating his demands by high losses inflicted by nationalist aviation over Republican troops as well as civilian population . On 8 , 9 May I - 15 and 6 R - Zet were sent by air from central Spain through Toulouse , in France . Planes were immediately immobilised by non - intervention committee , and later sent back unarmed to central Spain . Casualties : a controversial track . The number of civilian casualties has been debated and is still a matter of propaganda . An early study by Gernikazarra Historia Taldea estimated the number of victims to be 126 , later revised to 153 , and is still considered by the organisation to be provisional . Those incomplete data roughly correspond to the mortuary records of the town that survived , and do not include the 592 deaths registered in the Bilbao ' s hospital . Raul Arias Ramos in his book " La Legion Condor en La Guerra Civil " states that there were 250 dead . The study by Joan Villarroya and J . M . Sole i Sabate in their book " España en Llamas . La Guerra Civil desde el Aire " states that there were 300 dead These studies , cited by historians such as Stanley Payne and Antony Beevor as well as media such as the BBC and " El Mundo " , provide the currently recognized death toll . After Nationalist forces led by General Emilio Mola ' s forces took the town three days later , the Nationalist side claimed that no effort to establish an accurate number have been made by the opposite side . The Basque government , in the confused aftermath of the raids , reported 1 , 654 dead and 889 wounded . It roughly agrees with the testimony of British journalist George Steer , correspondent of " The Times " , which estimated that 800 to 3 , 000 of 5 , 000 people perished in Guernica . These figures were adopted over the years by some commentators . These figures are represented in a majority of the literature from that period and up to the 1970s , although they were always disputed . The Nationalist junta gave a patently false description of the events ( claiming that the destruction had been caused by Republicans burning the town as they fled ) and seem to have made no effort to establish an accurate number . At an extreme low , the Francoist newspaper " Arriba " claimed , on 30 January 1970 , that there had only been twelve deaths . Russian archives , through the historian Sergei Abrossov , mention 800 dead as of 1 May 1937 . This is an incomplete figure and does not take into account either the people later found under the rubble , nor those who died later of their injuries , but is certainly objective . It should be recalled that the Soviets were the only ones in the world , at that time , to maintain a strategic air force consisting mainly of heavy bombers Tupolev TB - 1 , R - 6 and TB - 3 whose general condition was good but that were becoming obsolete . The whole cost them dearly , especially since their replacement by the Tupolev ANT - 42 was planned : the validity of the doctrine of Douhet was therefore constantly discussed in the VVS - RKKA headquarters . Consequently , the interest of Soviet military advisers present in Spain , was the collection of reliable data for internal use and the devastating effects of the bombing " mass " scale , not for controversy . Moreover the adviser Arjenoukhine , being responsible for Northern Front air defence area , had no personal interest in inflating losses at Guernica . Bombs to casualty ratio . Issues with the originally released figures were raised following an appraisal of large scale bombing raids during the Second World War . A comparison of the Guernica figures with the figures of dead resulting from air attacks on major European cities during the Second World War exposed an anomaly . It came to be posited that the figures for Guernica were somewhat inflated . Corum uses the figure of forty tons of bombs dropped on Guernica , and calculates that if the figure of 1654 dead is accepted as accurate then the raid caused 41 fatalities per ton of bombs . By way of comparison the Dresden air raid during February 1945 which saw 3 , 431 tons of bombs dropped on the city caused fewer deaths per ton of bombs : 7 . 2 – 10 . 2 fatalities per ton of bombs dropped . Corum , who ascribes the discrepancy between the high death toll reported at Guernica and in other cases such as Rotterdam to propaganda , goes on to say that for Guernica : . . . a realistic estimate on the high side of bombing effectiveness ( 7 – 12 fatalities per ton of bombs ) would yield a figure of perhaps 300 – 400 fatalities in Guernica . This is certainly a bloody enough event , but reporting that a small town was bombed with a few hundred killed would not have had the same effect as reporting that a city was bombed with almost 1 , 700 dead " Views on the attack . The attack has entered the lexicon of war as an example of terror bombing . It is also remembered by the surviving inhabitants and people of Basque as such . Due to the lingering divisions of the conflict , the event remains a source of emotion and public recrimination . Military intentions . A commonly held viewpoint is that the involvement of the Luftwaffe in the Civil War constituted a proving ground for troops employed later during World War II . This view is supported by the comments of then Reichsmarschall Hermann Göring at the Nuremberg Trials : " I urged him [ Adolf Hitler ] to give support [ to Franco ] under all circumstances , firstly , in order to prevent the further spread of communism in that theater and , secondly , to test my young Luftwaffe at this opportunity in this or that technical respect . " Guernica may have been considered as a military target , Guernica was a communication centre not too far from the battle line . The Germans deliberately bombed Guernica in attempted to destroy the entire town . After the war a telegram sent from Franco ’ s headquarters was found and disclosed that he had asked German Condor Legion to attack Guernica . His belief was to attempt to discourage the Basque people , to take over the Basque Government , as well as the Spanish Republican government . Hermann Goering also confessed in 1946 that Germany had considered Guernica as a testing ground . Carpet bombing . Alongside the potential for gains in combat experience it is also thought that various strategic initiatives were first tried as part of Luftwaffe involvement in the conflict . Theories on strategic bombing were first developed by the Luftwaffe with the first exhibition of " carpet bombing " in the September 1937 Asturias campaign . Comparisons between the raid on Guernica and the fate of other cities during the conflict are also telling . As the fighting progressed into March 1938 Italian pilots flying as Aviazione Legionaria under Field Marshal Hugo Sperrle were involved in thirteen raids against Barcelona involving fire and gas bombs . The use of " carpet bombing " was becoming standard practice by Condor Legion personnel . To illustrate this point , military historian James S . Corum cites an excerpt from a 1938 Condor Legion report on this use of this tactic : We have had notable results in hitting the targets near the front , especially in bombing villages which hold enemy reserves and headquarters . We have had great success because these targets are easy to find and can be thoroughly destroyed by carpet bombing . " On the Spanish side , threats made prior to the raid by General Emilio Mola to " end the war in the North of Spain quickly " and threats apparently made against Republicans in Bilbao afterward implied a blunting of strategy and that air raids were effective and set to become an increasingly favorite instrument in the Nationalist war effort . Other theories . Vidal outlines some other commonly voiced theories on the raid : Media reporting . The first English - language media reports of the destruction in Guernica appeared two days later . George Steer , a reporter for " The Times " , who was covering the Spanish Civil War from inside the country , authored the first full account of events . Steer ' s reporting set the tone for much of the subsequent reportage . Steer pointed out the clear German complicity in the action . The evidence of three small bomb cases stamped with the German Imperial Eagle made clear that the official German position of neutrality in the Civil War and the signing of a Non - Intervention Pact was a sham . Steer ' s report was syndicated to the " New York Times " and then worldwide , generating widespread shock , outrage , and fear . There was coverage in other national and international editions also : Overall , the impression generated was one which fed the widely held public fear of air attack which had been building throughout the 1930s , a fear which accurately anticipated that in the next war the aerial forces of warring nations would be able to wipe whole cities off the map . Reaction in Spain . The Nationals claimed that Guernica had been deliberately burned and dynamited by fleeing Republican forces , which had been using the city to store ammunition and explosives ; it was also claimed that reports of the extent of the bombing had been exaggerated and were atrocity propaganda . While Republican forces had been involved in pursuing a scorched earth strategy in the past , ( notably in Irun , which was dynamited ) , Steer ' s reporting was supported by the reporting of other journalists who witnessed the same levels of destruction . The view that civilian casualties had been kept to a minimum was not widely accepted . The delay in arrival of firemen from Bilbao and their supposed inaction in containing the fires was also reported . Legacy . Steer ' s reports on the horrors of Guernica were greatly appreciated by the Basque people . Steer had made their plight known . The Basque authorities later honored his memory by naming a street in Bilbao " George Steer Kalea " , and commissioning a bronze bust with the dedication : " George Steer , journalist , who told the world the story about Guernica . " Despite Francoist efforts to play down the reports , they proliferated and led to widespread international outrage at the time . Picasso ' s painting . Guernica quickly became a world - renowned symbol of civilian suffering resulting from conflict and inspired Pablo Picasso to adapt one of his existing paintings into " Guernica " . The Spanish Republican Government had commissioned a work from him for the Spanish pavilion at the Paris International Exposition . Though he accepted the invitation to display a piece , he remained uninspired until he heard of the bombing of Guernica . Before the bombing of Guernica took place , Picasso never cared much for anything that had to do with politics . Once Picasso heard the news he changed his commissioned work for Spain into a reflection of the massacre . Picasso began his work on 11 May 1937 , it was " a piece of unbleached muslin more than 25 feet long and 11 feet high . " Since the work was such a giant piece , Picasso had to use a ladder and a long - handled brush to reach the furthest part of his artwork . Picasso spent over two months creating " Guernica " . The medium of his work was black and white paint . He used only black and white paint to make it seem like a documented photograph , it is also subjective . It is considered subjective because Picasso never tried to give an essence of time . It doesn ' t have the aeroplanes , the bombs , and there is no time to it . Which in turn gives no reason to accuse . All it allows is Guernica , a protest . " The protest is found in what has happened to the bodies , the hands , the soles of the feet , the horse ' s tongue , the mother ' s breasts , the eyes in the head — the imaginative equivalent of what happened to them in the flesh . We are made to feel their pain with our own eyes . " The display of Picasso ' s work at the Republican Spain Pavilion during the 1937 World ' s Fair reflected the impact on public consciousness . The painting went on to become a symbol indicative of Basque nationalism during the Spanish transition to democracy . Today it resides in Museo Nacional Centro de Arte Reina Sofía in Madrid . A tapestry copy of Picasso ' s " Guernica " is displayed on the wall of the United Nations building in New York City , at the entrance to the Security Council room . It was placed there as a reminder of the horrors of war . Rene Iche . Immediately after the bombing of Guernica Rene Iche , a French sculptor , created one of his most violent and personal sculptures . Rene Iche was shocked and horrified by the enormous civilian massacre ; he worked endlessly on the plaster statue . Iche used his daughter to model , so that he could get the proportion for child ' s body right . Iche refused to display his work because of the violence , just after his death an exhibition was held to commemorate the artist . This piece was displaced for that short time then returned to Iche ’ s family . German apology . Recrimination for the activities of the Condor Legion and shame at the involvement of German citizens in the bombing of Guernica surfaced following German reunification in the 1990s . In 1997 , the 60th anniversary of Operation Rügen , then German President Roman Herzog wrote to survivors apologizing on behalf of the German people and state for Germany ' s role in the Civil War in general . Herzog said he wished to extend " a hand of friendship and reconciliation " on behalf of all German citizens . This sentiment was later ratified by members of the German Parliament who went on to legislate in 1998 for the removal of all former Legion members ' names from associated German military bases . 70th anniversary . On the 70th anniversary of the bombing , the president of the Basque Parliament met with politicians , Nobel Peace Prize winner Adolfo Pérez Esquivel , and deputies from Hiroshima , Volgograd , Pforzheim , Dresden , Warsaw , and Oswiecim ( Auschwitz ) , as well as several survivors from Guernica itself . During the meeting they showed images and film clips of the bombing , took time to remember the 250 dead , and read the Guernica Manifesto for Peace , pleading that Guernica become a " World Capital for Peace " . Comparison to subsequent historical events . Bombing of Dresden . On 13 February 2003 , during the commemoration of the 58th anniversary of the Bombing of Dresden , inhabitants of Dresden , Germany , including survivors of the firestorm of 1945 , joined together with witnesses of the bombing of Guernica to issue an appeal to the people of the world : < poem > As our television sets show bombers preparing for war against Iraq , we survivors of Guernica and Dresden recall our own helplessness and horror when we were flung into the inferno of bombing — we saw people killed . Suffocated . Crushed . Incinerated . Mothers trying to protect their children with only their bodies . Old people with no strength left to flee from the flames . These pictures are still alive in our memory , and our accounts capture indelibly what we went through . For decades we — and survivors from many other nations — have been scarred by the horror , loss and injuries we experienced in the wars of the 20th century . Today we see that the beginnings of the 21st century are also marked by suffering and destruction . On behalf of all the victims of war throughout the world we express our sympathy and solidarity with all those affected by the terror of September 11 in the USA and the war in Afghanistan . But is that very suffering now also to be inflicted upon the people of Iraq ? Must thousands more die in a rain of bombs , must cities and villages be destroyed and cultural treasures obliterated ? < / poem > Bombing of Hiroshima . On 26 April 2007 , Dr . Tadatoshi Akiba , Mayor of Hiroshima and President of Mayors for Peace compared the experience of Guernica to Hiroshima : Human beings have often sought to give concrete form to our powerful collective longing for peace . After World War I , that longing led to the League of Nations and numerous rules and taboos designed to govern warfare itself . Of these , the most important was the proscription against attacking and killing civilian non - combatants even in times of war . However , the second half of the twentieth century has seen most of those taboos broken . Guernica was the point of departure , and Hiroshima is the ultimate symbol . We must find ways to communicate to future generations the history of horror that began with Guernica . . . < br > In this sense , the leadership of those here in Guernica who seek peace and have worked hard to bring about this memorial ceremony is profoundly meaningful . The solidarity we feel today derives from our shared experience of the horror of war , and this solidarity can truly lead us toward a world beyond war .