Unfortunately for them they had no leaders worthy to marshal their forces. Fashion and the influence of the court had seduced their men of rank; nor had they the enthusiasm which had secured victory at Ivry. Nor could they contend openly in the field; they were obliged to intrench themselves in an impregnable fortress: there they deemed they could defy their enemy. They even invoked the aid of England, and thus introduced foreign enemies on the soil of France, which was high-treason. They put themselves in the attitude of rebels against the government; and so long as English ships, with supplies, could go in and out of their harbor, they could not be conquered. Richelieu, clad in mail, a warrior-priest, surveyed with disgust their strong defences and their open harbor. His artillery was of no use, nor his lines of circumvallation. So he put his brain in motion, and studied Quintus Curtius. He remembered what Alexander did at the siege of Tyre; he constructed a vast dyke of stone and timber and iron across the harbor, in some places twelve hundred feet deep, and thus cut off all egress and ingress. The English under Buckingham departed, unable to render further assistance. The capture then was only a work of time; genius had hemmed the city in, and famine soon did the rest. Cats, dogs, and vermin became luxuries. The starving women beseeched the inexorable enemy for permission to retire: they remembered the mercy that Henry IV. had shown at the siege of Paris. But war in the hands of masters has no favors to grant; conquerors have no tears. The Huguenots, as rebels, had no hope but in unconditional submission. They yielded it reluctantly, but not until famine had done its work. And they never raised their heads again; their spirit was broken. They were conquered, and at the mercy of the crown; destined in the next reign to be cruelly and most wantonly persecuted; hunted as heretics by dragonnades and executioners, at the bidding of Louis XIV., until four hundred thousand were executed or driven from the kingdom.