This book is an account of the war that consumed Ireland from 1688 to 1691, the echoes of which can be heard to this day. This book is a military historian's view of that war. It describes the major battles and sieges of Carrickfergus, Charlemont and Athlone.

The comprehensive defeat of the Jacobite Irish in the Williamite conflict, a component within the pan-European Nine Years' War, prevented the exiled James II from regaining his English throne, ended realistic prospects of a Stuart restoration and partially secured the new regime of King William III and Queen Mary created by the Glorious Revolution. The principal events - the Siege of Londonderry, the Battles of the Boyne and Aughrim, and the two Sieges and Treaty of Limerick - have subsequently become totems around which opposing constructions of Irish history have been erected. Childs argues that the struggle was typical of the late-seventeenth century, principally decided by economic resources and attrition in which the 'small war' comprising patrols, raids, occupation of captured regions by small garrisons, police actions against irregulars and attacks on supply lines was more significant in determining the outcome than the set-piece battles and sieges.

The climatic battle that brought the Irish phase of an international war to an end. The consequences and outcomes of the conflict still echo down the centuries till today.

The comprehensive defeat of the Jacobite Irish in the Williamite conflict, a component within the pan-European Nine Years' War, prevented the exiled James II from regaining his English throne, ended realistic prospects of a Stuart restoration and partially secured the new regime of King William III and Queen Mary created by the Glorious Revolution. The principal events - the Siege of Londonderry, the Battles of the Boyne and Aughrim, and the two Sieges and Treaty of Limerick - have subsequently become totems around which opposing constructions of Irish history have been erected. John Childs, one of the foremost authorities on warfare in Early Modern Britain and Europe, cuts through myth and the accumulations of three centuries to present a balanced, detailed narrative and chronology of the campaigns. He argues that the struggle was typical of the late seventeenth-century, principally decided by economic resources and attrition in which the 'small war' comprising patrols, raids, occupation of captured regions by small garrisons, police actions against irregulars and attacks on supply lines was more significant in determining the outcome than the set piece battles and sieges.

Overturns established thinking that the Catholic elite were all expropriated and excluded from civil and political life as the Protestant Ascendancy was established.

Between James' accession in February 1685 and flight in December 1688 the British Armies increased four fold (the English, Scots and Irish Armies were still separate institutions and were to remain so until the early 18th Century, in the case of the Scots, and the early 19th Century in the case of the Irish); from a small force of little more than ceremonial and policing use to a fully-fledged Army with all of its necessary supporting arms and services. Respected historian Correlli Barnett wrote: "It might well be said that if the British royal standing army was in fact founded at one given time, it was between 1685 and 1688, and that James II was the army's creator." James himself said his Army had "...the reputation of being the best paid, the best equipped and the most sightly troops of any in Europe." At the time there were political complaints about illegality of a "new standing Army" with a "new Cromwellian military dictatorship" (and on a point of law a standing army was still illegal), in 1689 the new King, William III, kept James' Army in being and within a few years it was to become the Army which led the victories at Blenheim and elsewhere of the Great Duke of Marlborough, who had himself been a General in James' Army. It has been said that amongst William's reasons for accepting the British Crowns was a fear that the British Army would serve in alliance with Louis XIV against him. Despite this, James' part in the creation of the British Army is often deliberately overlooked or ignored. The political aspects of James' reign, and thus of the Army, are well covered in numerous works but this book looks at the creation of the enlarged Armies of England, Scotland and Ireland - their uniforms and flags, organization and weapons, their drill and their strength, their pay and their Staff. Researched primarily from contemporary documents and manuscripts, including those in the rarely accessed Royal Library at Royal Archives at Windsor, it will go a long way to restoring these years, and the last Stuart King, to their true importance in the creation of the British Army.

This is a description of how the Nine Years War affected the British Army, both in its actual operations in the theatre of war and in its size, operative capacity and costs. This war brought about radical changes in the sizes and the associated costs of the armies of Britain, France, Austria and the United Provinces in a relatively short period. For example, the size of field armies grew from an average of about 25,000 men during the Thirty Years' War to an average of about 100,000 men in 1695 during the Nine Years War. The costs of sustaining such huge field forces in terms of food, equipment and pay brought Britain and France, in particular, fiscal crisis and a shattered economy respectively, after the peace.