This page is a record of notable attacks by paramilitary organisations on Ulster Defence Regiment personnel during the Troubles resulting in two or more fatalities, or notable firsts:
Thiepval Barracks is a British Army barracks and headquarters in Lisburn, County Antrim. It is located near to the Harmony Hill area in Lisburn, a predominately Unionist area.
The Glenanne barracks bombing was a large truck bomb attack carried out by the Provisional IRA against a British Army base at Glenanne, near Mountnorris, County Armagh. The driverless lorry was rolled down a hill at the rear of the barracks and crashed through the perimeter fence. The bombing took place on 31 May 1991 and left three soldiers killed and 14 people wounded, four of them civilians.
1st Battalion, Ulster Defence Regiment was formed in 1970 as part of the 7 original battalions specified in The Ulster Defence Regiment Act 1969, which received Royal Assent on 18 December 1969 and was brought into force on 1 January 1970. It was amalgamated with the 9th Battalion, Ulster Defence Regiment in 1984 to form the 1st/9th Battalion, Ulster Defence Regiment.
2nd Battalion, Ulster Defence Regiment was formed in 1970 as part of the seven original battalions specified in the Ulster Defence Regiment Act 1969, which received royal assent on 18 December 1969 and was brought into force on 1 January 1970. It was, along with the rest of the regiment, amalgamated with the Royal Irish Rangers in 1992 to form the Royal Irish Regiment. It had previously been amalgamated in 1991 with the 11th Battalion Ulster Defence Regiment to form the 2nd/11th Battalion Ulster Defence Regiment.
The 11th (Craigavon) Battalion, Ulster Defence Regiment was formed from companies of the 2nd Battalion Ulster Defence Regiment and the 3rd Battalion Ulster Defence Regiment in 1972. In 1991 under the reductions planned in Options for Change by the British Army, it again amalgamated with 2 UDR to form the 2nd/11th Battalion Ulster Defence Regiment.
The 9th Battalion, Ulster Defence Regiment was formed in 1972 from two companies of the 1st Battalion Ulster Defence Regiment creating a second battalion in County Antrim. It was amalgamated with 1 UDR in 1984 to form 1/9 UDR.
4th Battalion, Ulster Defence Regiment was formed in 1970 as part of the seven original battalions specified in The Ulster Defence Regiment Act 1969, which received Royal Assent on 18 December 1969 and was brought into force on 1 January 1970. It was amalgamated with the 6th Battalion, Ulster Defence Regiment in 1992 to form the 4th/6th Battalion, Ulster Defence Regiment.
5th Battalion, Ulster Defence Regiment was formed in 1970 as part of the seven original battalions specified in The Ulster Defence Regiment Act 1969, which received Royal Assent on 18 December 1969 and was brought into force on 1 January 1970. It was, along with the rest of the regiment, amalgamated with the Royal Irish Rangers in 1992 to form the Royal Irish Regiment.
The 6th Battalion, Ulster Defence Regiment was formed in 1970 as part of the seven original battalions specified in The Ulster Defence Regiment Act 1969, which received Royal Assent on 18 December 1969 and was brought into force on 1 January 1970. It was, along with the rest of the regiment, amalgamated with the Royal Irish Rangers in 1992 to form the Royal Irish Regiment.
7th Battalion, Ulster Defence Regiment was formed in 1970 as part of the 7 original battalions specified in The Ulster Defence Regiment Act 1969, which received Royal Assent on 18 December 1969 and was brought into force on 1 January 1970. It was amalgamated with the 10th Battalion, Ulster Defence Regiment in 1984 to form the 7th/10th Battalion, Ulster Defence Regiment.
The 7th/10th Battalion, Ulster Defence Regiment was formed in 1984 as a result of an amalgamation between the 7th Battalion Ulster Defence Regiment and the 10th Battalion Ulster Defence Regiment. The resultant 7/10 UDR was subsumed into the Royal Irish Rangers in 1992 as part of the amalgamation which formed the Royal Irish Regiment.
The 8th Battalion, Ulster Defence Regiment was formed on 1 December 1971 using companies, based in the east of the county, of the 6th Battalion Ulster Defence Regiment. It was, along with the rest of the regiment, subsumed into the Royal Irish Rangers in 1992 to form the Royal Irish Regiment.
The 10th Battalion, Ulster Defence Regiment was formed in 1972 from elements of the 7th Battalion, Ulster Defence Regiment creating a second battalion in Belfast. It was again amalgamated with 7 UDR in 1984 to form the 7th/10th Battalion, Ulster Defence Regiment.
The 2nd//11th Battalion, Ulster Defence Regiment was formed in 1991 as a result of an amalgamation between the 2nd Battalion Ulster Defence Regiment and the 11th Battalion Ulster Defence Regiment. The resultant 2/11 UDR was subsumed into the Royal Irish Rangers in 1992 as part of the Options for Change amalgamations and was renamed the 6th Battalion Royal Irish Regiment.
The 1st/9th Battalion, Ulster Defence Regiment was formed in 1984 as a result of an amalgamation between the 1st Battalion Ulster Defence Regiment and the 9th Battalion Ulster Defence Regiment.
The Teebane bombing took place on 17 January 1992 at a rural crossroads between Omagh and Cookstown in County Tyrone, Northern Ireland. A roadside bomb destroyed a van carrying 14 construction workers who had been repairing a British Army base in Omagh. Eight of the men were killed and the rest were wounded. Most were civilians, while one of those killed and two of the wounded were off-duty British soldiers. The Provisional Irish Republican Army (IRA) claimed responsibility, saying the workers were targeted because they were collaborating with the "forces of occupation".
Brigadier Henry Joseph Patrick Baxter was an Irish born fourth generation soldier who overcame the handicap of being blind in one eye to join the army and rose to command one of the largest and most controversial regiments in the British Army.
The Mullacreevie ambush took place on 1 March 1991, when a mobile patrol of the Ulster Defence Regiment composed of two Land Rover vehicles was attacked with an improvised horizontal mortar by a Provisional IRA active service unit from the North Armagh Brigade while passing near Mullacreevie housing estate, on the west side of Armagh City. One member of the UDR was killed instantly when the leading Land Rover was hit, while another died of wounds two days later. Two other soldiers were maimed for life.
On 2 May 1974 the Provisional Irish Republican Army (IRA) attacked a British Army base manned by the Ulster Defence Regiment (UDR) near the Northern Ireland–Republic of Ireland border at Clogher, County Tyrone. The IRA unit engaged the small base with automatic weapons, rockets and improvised mortars. Ferret armoured cars were deployed to the scene and a fierce firefight erupted. The IRA withdrew behind the border with the Republic. The assault on the outpost killed greenfinch Eva Martin and wounded another UDR soldier.