In the meantime the Dutch, a people of vast resources and inflexible spirit, were not idle. But Blake, who was the chief authority in naval matters, caused the English Council to raise the English navy to 250 sail and fourteen fire-ships. While squadrons were sent to the western part of the Channel, to the Baltic, and to the Straits of Gibraltar, one hundred and seventy sail, of all classes, as well as the fire-ships, were to be placed under Blake’s immediate orders, to fight the enemy. The full number of vessels so authorized was never fitted out; but in a month from the fight off Dover the Admiral had one hundred and five ships, carrying near 4000 guns, under his immediate command. The great difficulty was in obtaining men to man the ships; and, to make up for the scarcity of seamen, two regiments of foot were taken bodily on board the fleet--and from that time marines, as a distinct corps, have formed part of the equipment of English men-of-war. In the meantime the Dutch were urging their preparations, and their dock-yards at the Texel, the Maas, and on the Zuyder Zee, were at work day and night. They laid the keels of sixty men-of-war, intended to be larger and more perfect than had ever been seen in the North Sea. Merchantmen of size were fitted as men-of-war, and all able seamen lured into service by high pay and the hope of prize money. In a few weeks Van Tromp found himself in command of one hundred and twenty sail, of all classes. It had become necessary for England to send to the Baltic for supplies of hemp, tar and spars, and it required a strong fleet to convoy these vessels safely home. Another fleet was detailed to intercept the rich Dutch merchant fleets from the East Indies and elsewhere, as well as to break up the great herring fishery, which the hardy and industrious Hollanders had monopolized, and in which their vessels were employed by the thousand. The spring fleet of herring vessels, numbering 600, was now coming home from the neighborhood of the North British islands, and as Tromp showed no immediate intention of putting to sea, Blake himself went to the North, leaving Sir George Ascue, his second in command, in the Channel, to keep a lookout for Van Tromp.