; appointed head of the army in Ireland by James II in 1685 and
Lord Deputy of Ireland in 1687, he increased Catholic recruitment in an effort to create an establishment loyal to James While recruitment of Catholics into the army had recommenced in the last years of Charles II's reign, James's newly appointed
Commander-in-Chief,
Richard Talbot, 1st Earl of Tyrconnell, wished to create a Catholic establishment loyal to James and conducted a purge of Protestant army officers, replacing many with Catholics. He also began accelerating recruitment of Catholics into the rank and file, starting with the Foot Guards, giving the pretext that “the King would have all his men young and of one size”. By the summer of 1686, two-thirds of the army's rank and file and 40% of officers were Catholic. Reports received by the viceroy, the
Earl of Clarendon, of growing friction between Catholic army units and Protestants began to cause concern both in Ireland and England: Clarendon's secretary noted "the Irish talk of nothing now but recovering their lands and bringing the English under their subjection". James and Tyrconnell's efforts to promote Catholicism alienated large parts of the British political establishment and in 1688 James was deposed by his Protestant daughter
Mary and her husband (and James's nephew)
William of Orange, ruling as joint monarchs. James had ordered 2,500 troops of the Irish army, including a battalion each of the Foot Guards, Granard's and Hamilton's regiments, transferred to England in late 1688, crippling Tyrconnell's ability to defend the country; all were disarmed on William's landing in England. Their Catholic personnel were imprisoned on the
Isle of Wight before being shipped to the Continent for service with the Emperor
Leopold; the remaining Protestant officers and men were incorporated into Granard's Regiment, which as the regiment with the highest proportion of Protestants became the only regiment of the Irish Army to continue in service with William, as the
18th Foot. With the implications for Ireland uncertain, Irish Protestants launched a rebellion in 1689, forming the
Army of the North and declaring William as king, though Tyrconnell was able to retain control of most towns using the remaining units loyal to James. After initially considering reaching a peace settlement with William, Tyrconnell subsequently resolved to hold Ireland for James; in January 1689 he issued warrants for an enormous expansion of the army. As the Catholic gentry realised the profits that could be made raising men for military service, many of the new regiments initially consisted of 30-45 companies, mostly without uniforms and armed with clubs or rusty muskets; neither Tyrconnell's government nor the Irish economy could afford to properly equip or pay such numbers and a team of inspectors, including
Patrick Sarsfield, reduced them to more manageable totals. James's Irish army eventually settled at a total of 45 foot regiments, each of 12 line companies and one grenadier company; 8 dragoon regiments; 7 cavalry regiments and a cavalry Life Guard, about 36,000 men strong.
The Williamite War (1691) was a defeat for
James II's Irish Army. Shortly afterwards much of the Army left for France in the
Flight of the Wild Geese. James landed in
Kinsale on 12 March, accompanied by French regulars under
Conrad von Rosen, along with English, Scottish and Irish Jacobite volunteers, in an attempt to use Ireland as a base to regain all three kingdoms. On 13 August,
Schomberg, head of William's main invasion force, landed in
Belfast Lough; by the end of the month, he had more than 20,000 men.
Carrickfergus fell on 27 August, but an opportunity for Schomberg to quickly end the war by taking Dundalk was missed after his army was crippled by poor logistics, exacerbated by disease. The ensuing Williamite War was to last two years and claim up to 100,000 civilian and military lives by contemporary estimate. William himself landed in June 1690 bringing substantial reinforcements; James's army was defeated at the
Boyne in July, leading to the loss of Dublin, but held off William's advance at the
Siege of Limerick in September. With the Jacobites retaining much of western Ireland, both James and William left Ireland in 1690, leaving the war to be handled by subordinates. In July of the following year the bloodiest battle in Irish history was fought at
Aughrim in
County Galway; the Irish army's senior commander, French officer
Charles Chalmot de Saint-Ruhe was killed and many other officers killed or taken prisoner, dealing a decisive blow to the Jacobite effort. Tyrconnell died of a stroke the following month and
Patrick Sarsfield took over as the senior Jacobite negotiator.
The Treaty of Limerick In October Sarsfield signed the
Treaty of Limerick; the settlement agreed to his demand that those still in Jacobite service could leave for France to serve with the
French army. Popularly known in Ireland as the "
Flight of the Wild Geese", the process began almost immediately, using English ships sailing from Cork; French ships completed it by December. Modern estimates suggest that around 19,000 men of the Irish army and
rapparees, or irregular forces, departed: women and children brought the figure to slightly over 20,000, or about one per cent of Ireland's population at the time. It was reported that some of the soldiers had to be forced on board the ships when they learned they would be joining the French. Most were unable to bring or to contact their families and many appear to have deserted en route from Limerick to Cork. A separate
Irish Brigade had been formed in 1689–90 for French service: the new arrivals from Ireland were eventually incorporated in it but continued the traditions of the old Irish army. While the French, despite a great deal of resistance by James himself, substantially reorganised the force, some individual regiments continued in existence, such as the
Grand Prior's Regiment and the Foot Guards, which became Albemarle's and
Dorrington's Regiments of the Irish Brigade respectively. They continued to wear the
red coat of the Irish Army, leading to occasional confusion when they were fighting against British troops wearing similar attire. Disbanded Jacobites still presented a considerable risk to security in Ireland and despite resistance from the English and Irish parliaments, William encouraged them to enlist in his own forces; by the end of 1693 a further 3,650 former Jacobites had joined William's armies fighting on the Continent. William reformed the Irish Army, using it as a source of recruits for his international coalition during the
Nine Years' War. Though Catholic recruitment was once again forbidden, this proved loosely enforced in practice while manpower was needed and men keen to enlist: a 1697 inquiry found 64 Irish Catholics in a single battalion and 400 in
Sir Richard Coote's regiment. Following the
Treaty of Ryswick, William planned to maintain a much larger standing army but the Parliament of England responded by passing the 1699 Disbanding Act, intended to prevent William involving the country in Continental wars; this reduced the English army to 7,000 and the Irish to 12,000. The Disbanding Act also insisted on the discharge of all foreigners, such as French
Huguenots, from both armies; from 1701 most recruitment in Ireland was also officially prohibited. ==Eighteenth century==