Another manifestation of the way in which sea-power works was first observed in the seventeenth century. It suggested the adoption of, and furnished the instrument for carrying out a distinct maritime policy. What was practically a standing navy had come into existence. As regards England this phenomenon was now of respectable age. Long voyages and cruises of several ships in company had been frequent during the latter half of the sixteenth century and the early part of the seventeenth. Even the grandfathers of the men who sailed with Blake and Penn in 1652 could not have known a time when ships had never crossed the ocean, and squadrons kept together for months had never cruised. However imperfect it may have been, a system of provisioning ships and supplying them with stores, and of preserving discipline amongst their crews, had been developed, and had proved fairly satisfactory. The Parliament and the Protector in turn found it necessary to keep a considerable number of ships in commission, and make them cruise and operate in company. It was not till well on in the reign of Queen Victoria that the man-of-war's man was finally differentiated from the merchant seaman; but two centuries before some of the distinctive marks of the former had already begun to be noticeable. There were seamen in the time of the Commonwealth who rarely, perhaps some who never, served afloat except in a man-of-war. Some of the interesting naval families which were settled at Portsmouth and the eastern ports, and which--from father to son--helped to recruit the ranks of our bluejackets till a date later than that of the launch of the first ironclad, could carry back their professional genealogy to at least the days of Charles II, when, in all probability, it did not first start. Though landsmen continued even after the civil war to be given naval appointments, and though a permanent corps, through the ranks of which everyone must pass, had not been formally established, a body of real naval officers--men who could handle their ships, supervise the working of the armament, and exercise military command--had been formed. A navy, accordingly, was now a weapon of undoubted keenness, capable of very effective use by anyone who knew how to wield it. Having tasted the sweets of intercourse with the Indies, whether in the occupation of Portugal or of Spain, both English and Dutch were desirous of getting a larger share of them. English maritime commerce had increased and needed naval protection. If England was to maintain the international position to which, as no one denied, she was entitled, that commerce must be permitted to expand. The minds of men in western Europe, moreover, were set upon obtaining for their country territories in the New World, the amenities of which were now known. From the reign of James I the Dutch had shown great jealousy of English maritime enterprise. Where it was possible, as in the East Indian Archipelago, they had destroyed it.