This chapter begins the second part of the monograph, focusing on the dehumanisation of the enemy. It shows that the Irish Rebellion of 1641 was not only a crucial political event in itself but it also laid down the foundations for delegitimisation in the English Civil War. The godly described the Rebellion and atrocities towards Protestants as an attack against the true religion, instigated by priests and Jesuits. This alleged existential threat to the Protestant English posed by the Catholics’ inherent disloyalty was prominently used to discredit the Irish but also those siding with the King in the emerging conflict. Charles criticised the rebels for their disloyalty but refrained from framing the uprising as a religious war. Many Puritans saw this as sympathy or even worse, a sign of a secret pact with the Irish. This soon developed to a rhetorical juxtaposition of the Irish and Royalists in Parliamentarian propaganda. That was crucial for the entire conflict and its spiral towards more violent language and crueller atrocities.