It was a reaction to Charles’ failure to honour the Graces and end plantations and inspired by the Scots worried about plans of Long Parliament for Ireland
Wanted to achieve a constitutional reform which would give element of independence and sympathy for Catholics and initially aims were moderate. But began to be an act of avenge
Pym issued Additional Instruction November 1641 – Commons would raise army if King agreed to appoint councillors chosen by Parliament – accepted 151-110 by Commons
Raised Parliamentary fears of Catholic Uprising in England instigated by Charles ( Build on early fear of Wentworth bringing Irish army to quell Covenanters and English)