On 2 October 1972, 32 years ago, IRA Volunteers struck a significant blow to the heart of the British Army's undercover Military Reconnaissance Force (MRF) in Belfast. Under the control of General Sir Harry Tuzo, the main work of the MRF - a forerunner of the Force Research Unit (FRU) - was to gather, collate and analyse intelligence on the republicans and on the IRA in particular. Free article