A comprehensive overview of the British army in Ireland in the eighteenth century and the army's relationship with the local population. The eighteenth-century army in Ireland, which consisted of 12,000 to 15,000 men, and which was its own quasi-independent "Establishment", paid for, housed by, and commanded from Dublin, represented a significant proportion of overall British military forces. This book, based on extensive original research, presents an overview of army life in Ireland in the period. It covers the administration of the Irish Establishment, recruitment, desertion, criminality, drunkenness, everyday routines, soldier-civilian relations, the response of soldiers to growing revolutionary unrest, and more. It overturns much established thinking, demonstrating for example that desertion in the army in Ireland was no different from desertion in the army elsewhere, that the army in Ireland was well-trained and efficient, and that Irish soldiers were far more common in British service than previously thought. In addition, the book discusses ideas of masculinity, the army's place in the defence of Ireland against foreign invasion, in securing the ascendancy regime and in suppressing unrest, and the unusual situation of Ireland as both subject and participant in the development of the British empire.