In early 1642 a Scottish army under the command of Robert Munroe arrived in Ulster as part of a scheme to defeat the native Irish rebellion which had begun late in the previous year. The conquest was not to be purely a military one. As a contemporary historian of Presbyterianism, Patrick Adair, observed ‘it is certain God made that army instrumental for bringing church governments, according to His own institutions, to Ireland … and for spreading the covenants’. The form of church government was that of the Presbyterian Church of Scotland, and in June 1642 the chaplains and officers established the first presbytery in Ireland at Carrickfergus. Sub-presbyteries, or meetings, were created for Antrim, Down and the Route, in north Antrim in 1654, for the Laggan in east Donegal in 1657, and for Tyrone in 1659. Within these units the Church was divided into geographical parishes each with its own minister. This establishment of a parallel structure rivalling that of the Anglican Church, but without the king at its head, is what has been termed the ‘presbyterian revolution’.It supported the Presbyterian claim to be ‘the Church of Ireland’, a claim which was to bring it into conflict with the civil and ecclesiastical authorities in the late seventeenth century. In order to further underpin this claim the reformed church began to move out of its Ulster base by the 1670s. The Laggan presbytery ordained William Cock and William Liston for work in Clonmel and Waterford in 1673 and was active in Tipperary, Longford, and Sligo by 1676. Its advice to some Dublin ministers was to form themselves into a group who were ‘subject to the meeting in the north’. The presbytery of Tyrone also supplied Dublin.