Declan Arthurs

East Tyrone Brigade
Provisional IRA mural at Coalisland
Active	December 1969–July 1997
Allegiance	Provisional Irish Republican Army
Area of operations	East County Tyrone
Actions	Ballygawley Land Mine Attack Attack on Ballygawley barracks Attack on RUC Birches barracks Loughgall Ambush Ballygawley bus bombing 1990 Gazelle shootdown Coagh ambush Teebane bombing Clonoe ambush Coalisland riots 1997 Coalisland attack July 1997 riots
Commanders
Notable commanders	Patrick Joseph Kelly Kevin McKenna

The East Tyrone Brigade of the Provisional Irish Republican Army (IRA), also known as the Tyrone/Monaghan Brigade was one of the most active republican paramilitary groups in Northern Ireland during "the Troubles". It is believed to have drawn its membership from across the eastern side of County Tyrone as well as north County Monaghan and south County Londonderry.

In the 1980s, the IRA in East Tyrone and other areas close to the border, such as South Armagh, were following a Maoist military theory devised for Ireland by Jim Lynagh, a high-profile member of the IRA in East Tyrone (but a native of County Monaghan). The theory involved creating "no-go zones" that the British Army and Royal Ulster Constabulary (RUC) did not control and gradually expanding them. Lynagh's strategy was to start off with one area which the British military did not control, preferably a republican stronghold such as east Tyrone. The South Armagh area was considered to be a liberated zone already, since British troops and the RUC could not use the roads there for fear of roadside bombs and long-range harassing fire. Thus it was from there that the IRA East Tyrone Brigade attacks were launched, with most of them occurring in east Tyrone in areas close to south Armagh, which offered good escape routes. The first phase of Lynagh's plan to drive out the British security forces from east Tyrone involved destroying isolated rural police stations and then intimidating or killing any building contractors who were employed to rebuild them. Lynagh's plans met strong criticism from senior brigade member Kevin McKenna, who regarded the strategy as "too impractical, too ambitious, and not sustainable" per journalist Ed Moloney. The IRA Northern Command, however, approved a scaled-down version of the strategy, aimed at hampering the repair and refurbishment of British security bases. Scottish-born journalist Kevin Toolis has written that from 1985 onward, the brigade led a five-year campaign that left 33 security facilities destroyed and nearly 100 seriously damaged.