The
Irish Confederate Wars, sparked by the
1641 Rebellion, were initially fought between the predominantly Catholic
Confederate Ireland, and a largely Protestant
Irish Royal Army, led by
Ormond. Both claimed to be loyal to
Charles I, while there was a three sided war in
Ulster. The latter involved
Royalists, Gaelic Catholic leader
Eoghan Ó Néill, and
Presbyterian militia, known as the
Laggan Army, supported by Scots
Covenanters under
Robert Munro. In September 1643, Ormond agreed a truce, or 'Cessation', with the Confederation, freeing his troops for use in England against
Parliament in the
First English Civil War. Some Irish Protestants objected, and switched sides, including
Sir Charles Coote, who became Parliamentarian commander in
Connacht. Charles surrendered in 1646, while a Covenanter/Royalist uprising was quickly suppressed in the 1648
Second English Civil War. On 17 January 1649, the Confederation allied with Ormond's Royalists; following the execution of Charles on 30 January, they were joined by the Laggan Army, and remaining Scots troops in Ulster. ; his refusal to support the Alliance in Ulster undermined its ability to resist Commonwealth forces There were various reasons for this. The Covenanter government, who provided support for Scottish settlers in Ulster, considered
Cromwell and other leaders of the new
Commonwealth of England dangerous political and religious radicals. As Scots, they objected to the execution of their king by the English; as
Presbyterians, they viewed monarchy as divinely ordained, making
regicide also
sacrilegious, and they transferred their allegiance to his son,
Charles II of England. However, this was offset by a split within the Confederation, between Catholic landowners who wanted to preserve the position prevailing in 1641, and those like Ó Néill, whose estates had been
confiscated in 1607. As a result, he agreed a truce with Coote, and refused to join the Alliance, depriving them of their most effective fighting force in the north. Despite this, by late July, Ormond's combined Royalist/Confederate army controlled most of Ireland. Ormond's defeat at
Rathmines on 2 August allowed Cromwell and an army of 12,000 to land in
Dublin unopposed. After capturing
Drogheda on 11 September, his main force headed south towards
Wexford; Colonel
Robert Venables was sent north with three regiments, or around 2,500 men, to take control of Ulster. Munro's garrisons surrendered with minimal resistance, and by the end of September, Venables had occupied
Dundalk,
Carlingford,
Newry, and
Belfast. These were accompanied by the mass expulsion of Scots settlers, as punishment for their defection; when Coote captured
Coleraine on 15 September, he massacred the largely Scottish garrison. Ó Néill's death in November 1649 and Coote's defeat of a combined Royalist/Covenanter force at
Lisnagarvey in December left the Catholic Ulster army as the only remaining opposition to the Commonwealth in the north. At a meeting at
Belturbet on 18 March 1650,
Heber MacMahon, Catholic
Bishop of Clogher, was appointed in his place. Although a leading figure in the Confederation, MacMahon had no military experience and opposed the alliance with Ormond's Royalists; his election was essentially a compromise between supporters of Henry, Ó Néill's son, and his cousin,
Phelim Ó Néill. == Campaign ==