Cromwell treated what was perceived by the "Parliamentary Cause" as the enemy no differently in England, Scotland or Ireland.

The rather lop-sided belief that the history of the British Isles is coloured by "big-bad" England versus "poor-heroic-victimised" Scotland/Ireland/Wales stems from the fault that it is taken and looked at in isolation. To fully understand the history of the British Isles you must also look at, and study, the history of the two super-powers for much of the time, France and Spain.

No mention of Sir Thomas Wentworth, whose mission to Ireland (1639) at the behest of King Charles to sound out the raising of an Irish Army (predominantly Catholic) under the command of the Duke of Ormond (Protestant) to invade England and impose the King's will on the population.

The Irish were not the only prisoners sent to the Commonwealth as slaves, the same happened to Scots and to English prisoners.