The 1973 Provisional IRA London bombings were conceived as a political strike at the heart of the British capital: four car bombs would dramatize the Northern Ireland conflict in England, while advance warnings were meant to prevent civilian deaths. The plan instead produced two devastating explosions, nearly 250 injuries and one death, turning an intended symbolic attack into a catastrophe whose consequences included the capture of its organizers.

Background and Planning

The operation grew out of a conflict in which Catholics in Northern Ireland faced discrimination in employment, housing and political power. The civil-rights march from Belfast to Derry on 1 January 1969 challenged those conditions through peaceful protest. But the ambush at Burntollet Bridge helped change Dolours Price’s view of what protest could achieve. In 1971, she joined the IRA, swearing allegiance in her family’s front room and promising to obey the orders of a superior officer. Her entry also coincided with a change in the Provisionals’ rules: after a special Army Council meeting, women were admitted as full members for the first time. Price had rejected a supporting role and insisted on serving as a fighting soldier.

The London mission was designed to make the conflict impossible for the British public to regard as a distant emergency. The Unknowns selected targets intended to evoke political questions and sought approval from the leadership in Belfast. The date was deliberate: the bombing was scheduled for the day of a referendum on whether Northern Ireland should remain part of the United Kingdom. In February 1973, six cars were hijacked at gunpoint in Belfast and taken to the Republic of Ireland. By early March, they had been repainted and fitted with false number plates. Four continued to England: a Ford Corsair, a Hillman Hunter, a Vauxhall Viva and a green Ford Cortina. Each carried more than a hundred pounds of powder explosives, with a sausage of gelignite, concealed beneath the rear seat and connected to a timer fashioned from a household alarm clock.

About a month before the attack, Price travelled to London with Martin Brady to scout the city. On 5 March, the team split into two groups. Hugh Feeney led the first across the Irish Sea with the Cortina and Viva; Marian Price led the second the following day with the Corsair and Hunter. At customs in Liverpool, officials held up the Hunter over its number plate. Brady was driving, with Roisin McNearney in the back. She left the car to use the toilet, and, while the questioning customs officer was called away, another official waved the group through. The scare prompted the team to cancel the journey of the last two cars rather than risk bringing more bombs into England.

As group leader, Dolours Price did not take the ferry. She flew from Dublin under the assumed name Una Devlin. By 7 March, the crew had gathered in London, parked the cars in public garages and checked into separate hotels. The four intended targets were a British Army recruiting centre in Whitehall, the British Forces Broadcasting Service on Dean Stanley Street, New Scotland Yard and the Old Bailey. Telephone warnings were to be made shortly before 2 p.m.; the timers were set to detonate an hour later, giving the team time to return to Dublin on a late-morning flight from Heathrow. In view of the civilian toll of Bloody Friday, the team had been ordered to avoid casualties. At the National Gallery in Trafalgar Square, Price finalized arrangements and handed out plane tickets. She told the team members not to acknowledge one another on the street and warned them against drinking. Yet some went out drinking, and one became so drunk that he had to be carried out of a pub.

Warnings, Explosions, and the Human Cost

On 8 March 1973, London’s early-spring calm was sharpened by an unusual traffic jam: a rail strike had forced commuters into cars, and parking restrictions had been suspended to accommodate them. Shortly after 2 p.m., Elizabeth Curtis, newly employed on the news desk at The Times, took a call from a man with a thick Irish accent who rapidly listed cars and their locations. Before hanging up, he warned that the bombs would explode in an hour. Journalist Martin Huckerby heard the information being relayed and ran to the Old Bailey, searching for a green Ford Cortina estate whose registration Curtis had transcribed. The warning gave the police a narrow window, but the city’s ordinary bustle and the scattered vehicles made the search a race against the timers.

At one of the cars, bomb-disposal officers found a thin white cord running beneath the carpet and nearly two hundred pounds of explosives packed under the rear seat. Its alarm-clock timer was audibly ticking. They cut the cord and prevented that bomb from exploding; investigators estimated that it would otherwise have detonated at about 3 p.m., although the minute hand had been removed. The long delay between the warning and the blast suggested that the bombers might be trying to escape, so Special Branch officers at ports and airports were ordered to close the exit routes and question Irish people preparing to leave. The authorities later presented their advantage as luck, while press reports raised the possibility that police had prior notice. The Price sisters and Hugh Feeney believed the operation had been betrayed. Decades later, a retired Special Branch officer said that a senior Provisional had warned him fourteen hours in advance, including that there would be four bombs and that the team included Gerry Kelly and two sisters named Price.

The warning did not prevent the explosions. In Whitehall, police found the Hillman Hunter outside the army recruiting centre with only five minutes remaining. An explosives expert climbed through a broken window but could not disarm the device in time. He and a sergeant tried to pull the detonating cord clear with a hook and long line as the timer reached its limit. The car split apart in a sheet of flame that rose forty feet; the blast lifted people from the pavement, shattered windows a quarter of a mile away and sent glass and metal fragments through the surrounding streets. A ruptured gas main added smoke and fire. Meanwhile, officers had dismantled the bomb in the Vauxhall Viva on Dean Stanley Street. At the Old Bailey, however, the response came too late. A policeman warned children leaving a school bus to run for cover, and they reached safety before the bomb exploded.

The Old Bailey blast tore away the front of the George pub, exposing its lounge, and hurled a police photographer across the street. A policeman evacuating jurors was thrown twenty feet; a cyclist was flung against a wall, and Martin Huckerby suffered cuts to his face and hands and was taken to St Bartholomew’s Hospital. Through smoke and hot dust, injured people tried to escape or help one another amid a carpet of broken glass. The two detonations injured nearly 250 people. The scene, familiar in Northern Ireland but jarring in the capital, recalled the Blitz to older Londoners. Nearby hospitals were also affected by a strike of non-medical workers, but workers abandoned their picket lines to help the bloodied casualties arriving at emergency wards.

Frederick Milton, a fifty-eight-year-old caretaker at Hillgate House beside the Old Bailey, was covered in blood by the blast. He refused medical advice to go to hospital and instead stayed to help other survivors. He collapsed hours later and died in hospital. An autopsy found that his heart attack had begun before the explosion, so the medical evidence did not support a murder charge. The distinction did not lessen the human cost of the attack: a mission planned as a symbolic strike, with warnings intended to avert civilian deaths, had killed a man and left hundreds injured.

Dolours Price attributed the casualties to the authorities’ slow response to the warnings, and the police acknowledged that human error in the control room had garbled the message about the Old Bailey, substantially delaying the search. A British prosecutor later argued that the warning had been a last-minute attempt to reduce punishment after the bombing team had been arrested at the airport, and speculated that killing people had been the mission’s intention. Brendan Hughes, by contrast, said that the operation was envisaged as symbolic and ideally bloodless, as Bloody Friday had been. The account leaves both the stated precautions and their disastrous inadequacy in view: with explosives of such power, the warnings could not guarantee safety, and the plan unravelled with devastating consequences. Hughes later focused less on the human toll than on the failed escape strategy. He regretted that the IRA had not left the bombers in England to make their way home gradually, instead of trying to get them out quickly—a decision with momentous consequences.

Arrest and Political Prisoner Status

After the bombing team was arrested at the airport, its members were taken to a nearby police station and stripped so their clothes could be tested for explosive residue. Dolours Price was photographed naked. The authorities’ forensic procedure was followed by a dispute over the status the prisoners claimed for themselves: some accepted prison uniforms, but Dolours and Marian Price refused them, regarding themselves as captured soldiers of a legitimate army rather than ordinary criminals. The sisters draped rough prison blankets over their bodies; Hugh Feeney refused even a blanket and stood naked in his cell.

The prisoners were separated, though the sisters briefly crossed paths in an interview room. Their refusal of prison clothing made the political meaning of the operation continue after its bombs had exploded: they insisted that capture did not convert armed service into common criminality. The episode thus joined the material aftermath of the attack—searches for explosive traces and detention—to the republican claim that its participants were political prisoners.

Political Afterlife and Memory

The bombing’s aftermath extended beyond imprisonment into a political landscape that was changing the terms of republican action. In 1981, the death of Frank Maguire created a by-election opportunity, and Bobby Sands’s decision to contest his seat from prison brought electoral politics into the struggle over the hunger strike. Sands’s campaign marked a departure from the abstentionist tradition that had long made republicans wary of parliamentary participation. Two years later, Dolours Price canvassed for Gerry Adams in West Belfast, urged voters to support him and drove voters to polling stations; Adams won. Price had abandoned violence as a means of pursuing Irish unity, but not republicanism: her campaigning showed how a former participant in the London operation could support the movement’s turn toward electoral politics.

The meaning of the bombings also remained entangled with the wider struggle over who could speak for the past. After the Good Friday Agreement, Northern Ireland had no formal process for deciding how to understand or commemorate the conflict. Gerry Adams continued to deny that he had been in the IRA, while Sinn Féin’s leadership maintained a disciplined account of republican armed struggle and peace, leaving critics such as Anthony McIntyre outside its preferred narrative. The later oral-history work associated with Boston College sought testimony from former republicans, but the stigma attached to speaking to outsiders showed how the movement’s code of silence could outlast the operations it had once protected. In that unresolved contest over memory, the London bombs were more than a completed attack: they belonged to a history whose violence had ended without producing agreement about how it should be told.