Downing Street mortar attack
|Downing Street mortar attack|
|Part of The Troubles|
|Location||10 Downing Street, London, England, UK|
|Date||7 February 1991
10:08 am (GMT)
The Downing Street mortar attack was carried out by the Provisional Irish Republican Army (IRA) on 10 Downing Street, London, the British Prime Minister John Major's official residence. The 7 February 1991 attack, an assassination attempt on Major and his War Cabinet who were meeting to discuss the Gulf War, was originally planned to target Major's predecessor Margaret Thatcher. Two shells overshot Downing Street and failed to explode, and one shell exploded in the rear garden of 10 Downing Street. No members of the cabinet were injured, though four other people received minor injuries, including two police officers. Major condemned the assassination attempt, stating "democracies cannot be intimidated by terrorism".
During The Troubles as part of its armed campaign against British rule in Northern Ireland, the IRA had repeatedly used homemade mortars against targets in Northern Ireland. The most notable attack was the 1985 Newry mortar attack which killed nine members of the Royal Ulster Constabulary. The IRA had never used mortars in England, but in December 1988 items used in their construction and technical details regarding the weapon's trajectory were found during a raid in Battersea, South London conducted by members of the Metropolitan Police Anti-Terrorist Branch. In the late 1980s British Prime Minister Margaret Thatcher was top of the IRA's list for assassination, following the failed attempt on her life in the Brighton hotel bombing. Security around Downing Street had been increased at a cost of £800,000 following increased IRA activity in England in 1988, including the addition of a police guard post and security gates at the end of Downing Street. Plans to leave a car bomb on a street near Downing Street and detonate it by remote control as Thatcher's official car was driving by had been ruled out by the IRA's Army Council owing to the likelihood of civilian casualties, which some Army Council members argued would have been politically counter-productive.
The Army Council instead sanctioned a mortar attack on Downing Street, and in mid-1990 two IRA members travelled to London to plan the attack. One of the IRA members was knowledgeable about the trajectory of mortars and the other, from the IRA's Belfast Brigade, was familiar with their manufacture. An active service unit purchased a Ford Transit van and rented a garage, and an IRA co-ordinator procured the explosives and materials needed to manufacture the mortars. The IRA unit began constructing the mortars and cutting a hole in the roof of the van for the mortars to be fired through, and reconnoitred locations in Whitehall to find a suitable place from which the mortars could be fired at the rear of 10 Downing Street, the Prime Minister's official residence and office. Once preparations were complete the two IRA members returned to Ireland, as the IRA leadership considered them to be valuable personnel and did not wish to risk them being arrested in any follow-up operation by the security services. In November 1990 Margaret Thatcher unexpectedly resigned from office, but the Army Council decided the planned attack should still go ahead, targeting her successor John Major. The IRA planned to attack when Major and his ministers were likely to be meeting at Downing Street, and waited until the date of a planned cabinet meeting was publicly known.
The attack 
On the morning of 7 February 1991, the War Cabinet and senior government and military officials were meeting at Downing Street to discuss the ongoing Gulf War. Those present at the meeting included John Major, David Mellor, Douglas Hurd, Tom King, Norman Lamont, Peter Lilley, John Wakeham, Robin Butler, David Craig, Patrick Mayhew, Percy Cradock, Charles Powell and Gus O'Donnell. As the meeting began an IRA member was driving the transit van to the launch site, at the junction of Horse Guards Avenue and Whitehall close to the headquarters of the Ministry of Defence, approximately 200 yards (200 m) from Downing Street, amid a heavy snowfall.
On arrival, the driver parked the van and left the scene on a waiting motorcycle. Several minutes later at 10:08 am, as a policeman was walking towards the van to investigate it, three mortar shells were launched, followed by the explosion of a pre-set incendiary device. This device was designed to destroy any forensic evidence and set the van on fire. Each shell was four and a half feet long, weighed 140 pounds (60 kg), and carried a 40 pounds (20 kg) payload of the plastic explosive Semtex. The type of device used by the attackers was a Mark 10 homemade mortar, according to the British designation. Two shells landed on a grassed area near the Foreign and Commonwealth Office and failed to explode. The third shell exploded in the rear garden of 10 Downing Street, 30 yards (30 m) from the office where the cabinet were meeting. Had the shell struck 10 Downing Street itself, it is probable the entire cabinet would have been killed. On hearing the explosion the cabinet ducked under the table for cover. Bomb-proof netting on the windows of the cabinet office muffled the force of the explosion, which also scorched the rear wall of the building and made a crater several feet deep in the garden.
Once the sound of the explosion and aftershock had died down, John Major said, "I think we had better start again, somewhere else." The room was evacuated and the meeting reconvened less than ten minutes later in the underground bunker known as the Cobra Room. No members of the cabinet were injured, but four people received minor injuries, including two police officers injured by flying debris.
The IRA admitted responsibility for the attack with a statement issued in Dublin, saying "Let the British government understand that, while nationalist people in the six counties [Northern Ireland] are forced to live under British rule, then the British Cabinet will be forced to meet in bunkers". John Major told the House of Commons that "Our determination to beat terrorism cannot be beaten by terrorism. The IRA's record is one of failure in every respect, and that failure was demonstrated yet again today. It's about time they learned that democracies cannot be intimidated by terrorism, and we treat them with contempt". Leader of the Opposition Neil Kinnock also condemned the attack, stating "The attack in Whitehall today was both vicious and futile". The head of the Metropolitan Police Anti-Terrorist Branch, Commander George Churchill-Coleman, described the attack as "daring, well planned, but badly executed". Peter Gurney, the head of the Explosives Section of the Anti-Terrorist Branch who defused one of the unexploded shells, gave his reaction to the attack:
It was a remarkably good aim if you consider that the bomb was fired 250 yards [across Whitehall] with no direct line of sight. Technically, it was quite brilliant and I'm sure that many army crews, if given a similar task, would be very pleased to drop a bomb that close. You've got to park the launch vehicle in an area which is guarded by armed men and you've got less than a minute to do it. I was very, very surprised at how good it was. If the angle of fire had been moved about five or ten degrees, then those bombs would actually have impacted on Number Ten.
A further statement from the IRA appeared in An Phoblacht, with a spokesperson stating "Like any colonialists, the members of the British establishment do not want the result of their occupation landing at their front or back doorstep ... Are the members of the British cabinet prepared to give their lives to hold on to a colony? They should understand the cost will be great while Britain remains in Ireland." The attack was celebrated in Irish rebel popular culture when The Irish Brigade released a song titled "Downing Street", to the tune of "On the Street Where You Live", which included the lyrics "while you hold Ireland, it's not safe down the street where you live".
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- IRA Mortar attack on Downing Street – ITN video
- John Major reaction to IRA Mortar attack – ITN video