This ground-breaking book explores the history of the Irish republican prisoners held in English prisons during the first phase of the Troubles. The arrival of the first of over 200 IRA members into the Dispersal System challenged a penal environment devised to cope with a relatively small number of long-term criminal inmates and inspired a range of Home Office reforms. The republicans exacerbated tensions within the limited range of facilities suitable for ‘Category A’ prisoners and played leading roles in the major Hull Riot of 1976 and numerous other confrontations. This comprehensive book draws upon unprecedented access to participants to detail and analyse the phenomena of the IRA in English prisons. Extensive new information is presented on IRA activities within the Dispersal System, not least planning and participation in riots, protests, legal challenges, escapes (successful and unsuccessful) and violent actions. Day-to-day factors such as interaction with British prisoners, family visits, education, ‘ghosting’ and attitudes towards prison staff are documented in depth. Extensive use has been made of private collections of correspondence and papers, state archives, political prints and international media reports. Account is taken of the perspective of the Home Office and British Government, based on declassified documents, memoirs of key protagonists and official records of parliamentary business. The attitude of the Irish Government is also assessed.