If Oliver was to make both ends meet, it could only be by reductions in the army, and to effect these he needed the co-operation of the officers, whilst so far as Scotland and Ireland were concerned, reductions which might have been dangerous in January had ceased to be dangerous in July. Monk, who had been sent back to the north as soon as he could be spared from the Dutch war, had reduced the Highlands to submission; and Ireland, which had been earlier subjected by English arms, was now to have imposed on her that thorough-going system of English colonisation which is usually known as the Cromwellian settlement, the principles of which had, however, been laid down by preceding Governments. Those of the landowning class who were unable to prove, to the satisfaction of English judges, that they had shown constant good affection to the English Government, even if they had taken no part against England in the late war--that is to say, the great bulk of the class which had anything to lose amongst the Irish Catholics--were driven off into the devastated lands of Connaught, and their estates were divided amongst English soldiers and other Englishmen who had lent money for the support of the war upon the security of confiscated land. Henceforth there was to be in three of the Irish provinces a class of landed proprietors of English birth and the Protestant religion surrounded by peasants and labourers who were divided from them by racial and religious differences of the most extreme kind. Such an arrangement boded ill for the future peace of the country. The immediate result was untold misery to the sufferers and the kindling of hope in English bosoms that at last Ireland would be peopled by a race loyal to the institutions and religion of her conquerors. In any case the scheme for the plantation of Ireland would diminish the number of soldiers required to hold the country, and before the end of July the assent of the chiefs of the army in England having been obtained, the Council also sanctioned not merely a sweeping reduction in the strength of the regiments in Great Britain, but a diminution of the amount of the pay both of officers and soldiers. Once more Oliver had acted in accordance with the Instrument, and with the wishes of the dissolved Parliament. The £60,000 a month which Parliament had thought sufficient for the assessment was not exceeded, whilst the army was reduced at least approximately to the numbers accepted alike by Parliament and the Instrument. It might be hard to give a satisfactory answer to those who denied the validity of the Instrument; but, if this validity were acknowledged, it would be equally hard to refute those who argued that Oliver was doing his best to rule as a constitutional magistrate.