In 1969, the situation in Northern Ireland was so grave that British troops were sent to restore order. By 1972, the British government suspended the Northern Ireland parliament and imposed direct rule from London.
The Troubles saw 3,600 people killed and thousands more injured.
These photos are of those times. This was when the British Army trained its guns on British citizens on British soil:
British troops in Belfast, Northern Ireland stand outside a new all weather shelter in October 1969. (AP Photo/Peter Kemp)
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British troops patrol in Belfast, Northern Ireland in 1969, following conflict in the city. (AP Photo/Peter Kemp)
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British troops in Belfast, Northern Ireland around 1969. (AP Photo/Peter Kemp)
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Against a background of ruined homes, British troops guard a strategic roadway position in their peacekeeping role in Belfast, Northern Ireland in 1969. (AP Photo/Peter Kemp)
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Local people walk past British troops on guard in the streets after violence in Northern Ireland in August 1969. (AP Photo/Peter Kemp)
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British soldiers stand guard behind a barbed wire barricade in Londonderry, Northern Ireland in August 1969, following fresh disturbances. (AP Photo/Peter Kemp)
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A British Army soldier on lookout in the Falls Road area of Belfast.
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Local children look at British troops who have been sent to form a buffer during religious disputes in Northern Ireland in September 1969. (AP Photo/Royle)
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Armed British soldiers in Belfast, Northern Ireland during disorders in September 1969. (AP Photo/Royle)
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An armed British soldier in Belfast, Northern Ireland during disorders in September 1969. In the background are local people. (AP Photo/Royle)
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Bernadette Devlin, firebrand Catholic civil rights leader and Member of Parliament for Mid-Ulster, surrounded by British troops, leaves court at Londonderry, Northern Ireland, on Dec. 22, 1969, after receiving six months jail sentence on charges of inciting people to riotous behavior. (AP Photo)
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An armed British soldier in Belfast, Northern Ireland during disorders in September 1969. (AP Photo/Royle)
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Captain Young of the King’s Own Scottish Borderers holds the British Army’s new anti riot weapon, the rubber bullet, which was used recently in the new Lodge Road area of Belfast, Northern Ireland during riots in 1970. (AP Photo/Peter Kemp)
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British troops confront young rioters on the Ballymurphy Estate in Belfast, Northern Ireland in 1970. (AP Photo/Peter Kemp)
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British troops at known trouble spots in the city streets during the Orange Day Parade in Belfast, Northern Ireland on July 13, 1970. (AP Photo/Peter Kemp)
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Troops of the Royal Scots Regiment in riot protection clothing in Belfast, Northern Ireland during a drill parade in July 1970. The soldiers were part of a contingent of the British Army drafted into the area to help quell disorders and outbreaks of rioting a the city caused by friction between rival Catholic and Protestant groups. (AP Photo/Peter Kemp)
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BELFAST IRA CLASHES – British troops straddle a main road near the Catholic Unity flats in Belfast, Northern Ireland, during a lull in the recent current wave of disorders which had flared up in a show of strength by a breakaway group of the Irish Republican Army earlier in the week. Club wielding republican extremists had forcefully halted traffic during the funerals of catholic riot victims. (AP-Photo/Peter Kemp) 02/11/1971
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British troops sift through the ruins of a supermarket after a bomb exploded in Cavehill Road, Belfast, Northern Ireland in 1971. (AP Photo)
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BELFAST IRA CLASHES – Brithis troops take up positions in the doorways of shops near Eliza street, in the markets area of Belfast, a short distance from the city centre of Northern Irelands capital. Area was the scene of continued bitter fighting as British forces clashed with elements of the Irish Republican Army provisional wing. (AP-Photo/Peter Kemp) 08/17/1971
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A British soldier stands guard as bystanders wait to get a view of operations by the army bomb disposal squad in Northern Ireland on Nov. 11, 1971 after an explosive device had been planted near the city centre. (AP Photo)
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To help the 1st Battalion Scots Guards, at present serving in Northern Ireland, celebrate Hogmanay in the traditional manner, the North-East London Army Cadet Force has presented them with two cases of ‘Hard Rations’, known to civilians as Scotch whisky.
Army Cadet Force Lance-Corporal Anthony Jackson (in beret) presented the cases to Major J R Arthur, Regimental Adjutant, Scots Guards, at Wellington Barracks, London.
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British troops fire rubber bullets at stone-throwing Protestant rioters who had set fire to the mobile classrooms of Our Lady of Mercy Secondary School in the Ballysillian area of west Belfast, Northern Ireland, March 28, 1972. (AP Photo/Michel Lipchitz)
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A young child, resting on a man’s shoulders, holds a hanging effigy of a British soldier during a march in Belfast, capital of Northern Ireland, Feb. 1972. The rally follows the deadly shooting of 13 demonstrators by British paratroopers during the civil rights march on Jan. 30, known as Bloody Sunday. (AP Photo/Michel Laurent)
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Women and children stand near an armed British military soldier patrols a street in Belfast, Northern Ireland, Feb. 1972. British paratroopers shot 13 demonstrators during a civil rights march on Jan. 30, known as Bloody Sunday. (AP Photo/Michel Laurent)
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Troops sprint from their barracks in Holywood, near Belfast to board a truck to take up guard duty.
Riot police wearing helmets and gas masks during disturbances with Catholic rioters along a street in the Bogside area of Londonderry, Northern Ireland on Aug. 13, 1969. (AP Photo/Peter Kemp)
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People move to and from the Bogside area of Londonderry after a night of rioting in which at least five people were shot dead.
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A wedding couple sitting in the back of a truck is stopped and checked by British soldiers in Shankill Road, Belfast, Northern Ireland.
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Private Edward Egan of the 1st battalion The Queens Regiment, from Uckfield, Sussex, stands guard on the city walls overlooking Bogside, the Catholic area of troubled Londonderry.
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British soldiers stand guard as a department store goes up in flames in the center of Londonderry, Northern Ireland, on Jan. 4, 1972. In center background, a fireman directs water into the blaze. The fire followed explosion of a bomb planted in the building by Irish Republican Army (IRA) terrorists. (AP Photo)
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A British soldier stands guard near a camouflaged control post in Belfast, Northern Ireland’s capital in 1972. (AP Photo)
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A British soldier guards firemen fighting a blaze after a bomb blast at a miller’s beside the River Foyle in Londonderry, when bombers opened a new offensive in the city in response to the shooting deaths of 13 civilians at the weekend by British soldiers.
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Local children taunt a British soldier as he stands guard in Londonderry, Northern Ireland on April 13, 1972, after an explosion in the city center. (AP Photo/Michel Lipchitz)
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Local children taunt and play with a British soldier as he stands guard in Londonderry, Northern Ireland, April 13, 1972, following an explosion in the city. (AP Photo/Michel Lipchitz)
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Lieut. General Sir Harry Tuzo, GOC Northern Ireland, (centre) with a Military Police escort in Newry.
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British troops search the handbags of Ulster women on the outskirts of the Northern Ireland town of Newry on Feb. 6, 1972, the day scheduled for a massive demonstration by the Pro-Catholic Civil Rights movement, to protest over the shooting of 13 civilians in Londonderry. Later the marchers avoided the town centre of Newry and held instead a peaceful protest meeting in a meadow. (AP Photo)
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A British paratrooper takes a young girl in his arms to comfort her after she had been hurt in the bomb blast in Donegal Street, Belfast.
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Members of the Irish Republican Army, unseen, watched by local children and British soldiers, lead a parade past a British Army observation post before arriving at Milltown Cemetery in the Falls Road area of west Belfast, Northern Ireland, April 1, 1972. Milltown Cemetery is Belfast’s Catholic cemetery where the IRA bury their dead. (AP Photo/Michel Lipchitz)
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A British soldier stands guard in a Londonderry Street on following a bomb outrage near the city centre in April 1972. (AP Photo)
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British troops tidy out their defense position in the centre of Londonderry, Northern Ireland in April 1972. (AP Photo/Michel Lipchitz)
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General Sir Robert Ford, Britain’s Commander of Land Forces in Northern Ireland, pictured on July 3, 1972, in Belfast.
British troops stand guard on a beach near Belfast, Northern Ireland’s capital in July 1972, as local families bath in the sea. (AP Photo/Peter Kemp)
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Catholic youths throw stones and gasoline bombs at British troops, Aug.12,1979. Rioting broke out after the British troops appeared at an afternnoon rally in Belfast, Northern Ireland. (AP Photo/Peter Kemp)
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A man hurls missiles at an overturned bread delivery van that was set afire in the Bogside district of Londonderry, Northern Ireland in August 1979. Fresh disorders in the troubled province marked the tenth anniversary of British army intervention in the area. (AP Photo/Peter Kemp)
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A British soldier with a rifle guards a road outside of Belfast, Northern Ireland in 1976. (AP Photo)
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Shoppers in Belfast, Northern Ireland go about their business with almost total indifference to a British Army street patrol in 1976. (AP Photo)
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British soldier keeps vigil at a vantage point overlooking the Belfast Docks in Northern Ireland in February 1975. (AP Photo)
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British troops stand guard as bomb experts search through the wreckage after a terrorist bomb had wrecked the ground floor on the Luxury Belfast Europa Hotel in Northern IrelandÂs capital in 1975. (AP Photo)
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British troops prepare to move an overturned and wrecked car, used as a barricade in Newtownwards Road in Belfast, capital of Northern Ireland in May 1974, during the strike called by members of the Ulster Workers Council. (AP Photo)
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Belfast city center is cleared on Feb. 3, 1973, so that British Army bomb disposal experts could de-fuse a bomb placed on this tanker, at right, containing 4,000 gallons of petrol. The bomb was safely made harmless and life returned to what is normal for Belfast, Northern Ireland. (AP Photo)
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THE TROUBLES 1973: British troops of the Argyll and Sutherland Highlanders with armoured cars in the city of Belfast in Northern Ireland on routine patrol.
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A stop and search operation on the Craigavon bridge over the River Foyle, here this morning, as traffic is allowed back into the city after yesterday’s massive ‘Operation Motorman’ by the British Army.
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A quiet night in Belfast – Cpl Roger Soames of Aylesbury, Bucks., and Marine Thomas Taylor of Accrington, Lancs., both of Royal marine 40 Squadron Commandos, keep watch from the newly established post on the roof of Artillery Flats in the New Lodge Road area of Belfast at dawn today.
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Soldiers search among the wreckage of a building in the Shankhill Road area of Belfast, Northern Ireland on Thursday, August 17, 1972 after a bomb had destroyed a bar and other nearby buildings. (AP Photo/Heinz Ducklau)
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Ferret armoured cars of the British Army
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A British soldier, and residents of Alliance Parade, Belfast, Northern Ireland, examine the remains of a car bomb which severely damaged their homes in Belfast on July 14, 1972. (AP Photo/Peter Kemp)
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An injured soldier is dragged away by his comrades during a riot in the Falls Road, Belfast, on the first day of Queen Elizabeth II’s Silver Jubilee visit to Northern Ireland.
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GRENADIER GUARDS CAPTAIN ROBERT NAIRAC TALKING TO CHILDREN IN THE ARDOYNE AREA OF BELFAST IN FEBRUARY 1977. NAIRAC WAS EXECUTED BY THE FIRST BATTALION OF THE IRA AFTER DISAPPEARING IN DRUMINTREE.
PA NEWS PHOTO 20/11/79 PRINCE CHARLES WEARING A REGIMENTAL TAM O’ SHANTER, TALKING WITH MEN OF THE 1ST BATTALION GORDON HIGHLANDERS AT ARMAGH DURING A SURPRISE SIX HOUR VISIT TO NORTHERN IRELAND.
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