The beginnings of so great an enterprise were formed with a very slender force. Not four hundred men landed near Wexford: they took the town by storm. When reinforced, they did not exceed twelve hundred; but, being joined with three thousand men by Dermot, with an incredible rapidity of success they reduced Waterford, Dublin, Limerick, the only considerable cities in Ireland. By the novelty of their arms they had obtained some striking advantages in their first engagements; and by these advantages they attained a superiority of opinion over the Irish, which every success Increased. Before the effect of this first impression had time to wear off, Henry, having settled his affairs abroad, entered the harbor of Cork with a fleet of four hundred sail, at once to secure the conquest, and the allegiance of the conquerors. The fame of so great a force arriving under a prince dreaded by all Europe very soon disposed all the petty princes, with their King Roderic, to submit and do homage to Henry. They had not been able to resist the arms of his vassals, and they hoped better treatment from submitting to the ambition of a great king, who left them everything but the honor of their independency, than from the avarice of adventurers, from which nothing was secure. The bishops and the body of the clergy greatly contributed to this submission, from respect to the Pope, and the horror of their late defeats, which they began to regard as judgments. A national council was held at Cashel for bringing the Church of Ireland to a perfect conformity in rites and discipline to that of England. It is not to be thought that in this council the temporal interests of England were entirely forgotten. Many of the English were established in their particular conquests under the tenure of knights' service, now first introduced into Ireland: a tenure which, if it has not proved the best calculated to secure the obedience of the vassal to the sovereign, has never failed in any instance of preserving a vanquished people in obedience to the conquerors. The English lords built strong castles on their demesnes; they put themselves at the head of the tribes whose chiefs they had slain; they assumed the Irish garb and manners; and thus, partly by force, partly by policy, the first English families took a firm root in Ireland. It was, indeed, long before they were able entirely to subdue the island to the laws of England; but the continual efforts of the Irish for more than four hundred years proved insufficient to dislodge them.