It is 1972 and in war-torn Northern Ireland the tears of Bloody Sunday are barely dry. In London, in the British Ministry of Defence SAS Sgt. Major Jack Gillespie is offered a mission unlike any other before. The British Secret Service MI6 want him to take "on the ground" command of an undercover military unit which will take on the IRA on their own turf in West Belfast. It will be called the Military Reaction Force (MRF). For political reasons it will NOT be part of the elite Special Air Service but cooked up with ingredients of a few "Dirty Dozens" of quirky castoffs from regular British Army units and peppered with a few crack troops from the Special Boat Service. There are no official military records available on the MRF and yet it played a dramatic part in the evolution of the Irish Troubles in the 1970s. Killjoys - The Military Reaction Force History , covers the 18 months in which Jack Gillespie's MRF was tasked with seeking out and shooting dead IRA gunmen. By day Gillespie, posed as a press photographer deep in "enemy territory" to gain vital intelligence. At night however, the camera was left at home and the Thompson machine gun - the "gangster gun"- was brought along instead, with devastating results. Among Gillespie's targets in 1973 was Gerry Adams. Killjoys - The Military Reaction Force History conveys the frantic tension in Belfast. Readers will scarcely believe the account as it contradicts the propaganda they were fed about the British Army in Northern Ireland for a generation. And for them to hear it from the inside makes it all the more remarkable.Jack Gillespie was the youngest-ever recruit to the SAS and was associated with the Regiment for more than 30 years, serving all over the world, from the Jungles of Malaysia, to the deserts of Aden, to the mean streets of Belfast. Due to his fearless reputation he became known as the "hardest man in the regiment" but Killjoys - The Military Reaction Force History takes you beneath the tough exterior to the real man.