Undercover War: Britain's Special Forces and their secret battle against the IRA

When British troops first deployed to Northern Ireland in 1969, to halt the threat of a new rising force - the Provisional Irish Republican Army - they could not have known that the longest campaign in the British Army's history was beginning.

While patrols, vehicle bombs and incendiary speeches are the defining memories of the Troubles, the real war was fought out of sight and out of mind. For thirty years, Britain's Special Forces waged a ferocious, secretive struggle against a ruthless a...