Although the victory was not nearly so decisive as it should have been with the opportunity offered, nevertheless it served the need of the hour. De Ruyter was no longer able to blockade the Thames and the Straits of Dover. And Monk, following up his success, carried the war to the enemy's coast, where he burned a merchant fleet of 160 vessels in the roadstead of the island of Terschelling, and destroyed one of the towns. Early in 1666 active operations on both sides dwindled down, and Charles, anxious to use naval appropriations for other purposes, allowed the fleet to fall into a condition of unreadiness for service. One of the least scandals in this corrupt age was the unwillingness or inability of the officials to pay the seamen their wages. In consequence large numbers of English prisoners in Holland actually preferred taking service in the Dutch navy rather than accepting exchange, on the ground that the Dutch government paid its men while their own did not.
Early in June, 1667, de Ruyter took advantage of the condition of the English fleet by inflicting perhaps the greatest humiliation on England that she has ever suffered. Entering the Thames unopposed, he was prevented from attacking London only by unfavorable wind and tide. He then turned his attention to the dockyards of Chatham and burnt or captured seven great ships of the line, besides numerous smaller craft, carried off the naval stores at Sheerness, and then for the next six weeks kept a blockade on the Thames and the eastern and southern coasts of England. This mortifying situation continued until the signing of the "Peace of Breda" concluded the war.
Less than five years later Charles again made war on the Netherlands. For this there was not the shadow of excuse, but Louis XIV saw fit to attack the Dutch, and Charles was ever his willing vassal. The English began hostilities without any declaration of war by a piratical attack on a Dutch convoy.
At this juncture Holland was reduced to the last extremity. Attacked on her land frontiers by France, then the dominating military power, and on her sea frontiers by England, the strongest naval power, she seemed to have small chance to survive. But her people responded with a heroism worthy of her splendid history. They opened their dykes to check the armies of invasion and strained every nerve to equip a fleet large enough to cope with the combined navies of France and England. In this Third Dutch War four great naval battles were fought: that of Solebay, May 28, 1672, the two engagements off Schooneveldt, May 28 and June 4, 1673, and that of the Texel, August 11, 1673.
In all of these the honors go to the Dutch and their great admiral, de Ruyter. Since these actions did not restore the Netherlands to their old-time position or check the ascendancy of England, they need not be discussed individually here. The outstanding feature of the whole story is the surpassing skill and courage of de Ruyter in the face of overwhelming odds. In this war he showed the full stature of his genius as never before, and won his title as the greatest seaman of the 17th century. After his death one must wait till the day of Suffren and Nelson to find men worthy to rank with him.
In this campaign de Ruyter showed his powers not only as a tactician but as a strategist. In the words of Mahan, the Dutch "made a strategic use of their dangerous coast and shoals, upon which were based their sea operations. To this they were forced by the desperate odds under which they were fighting; but they did not use their shoals as a mere shelter,—the warfare they waged was the defensive-offensive. When the wind was fair for the allies to attack, de Ruyter kept under cover of his islands, or at least on ground where the enemy dared not follow; but when the wind served so that he might attack in his own way he turned and fell upon them."[1] That is, instead of accepting the tame rôle of a "fleet in being" and hiding in a safe harbor, de Ruyter took and held the sea, always on the aggressive, always alert to catch his enemy in a position of divided forces or exposed flank and strike hard. His master, Martin Tromp, is regarded as the father of the line ahead formation for battle, but he undoubtedly taught de Ruyter its limitations as well as its advantages, and there is no trace of the stupid formalism of the Duke of York's regulations in de Ruyter's brilliant work.
[Footnote 1: Influence of Sea Power upon History, p. 144.]
At this time he had no worthy opponent. As Monk was dead, the Duke of York had again assumed active command with Rupert as his lieutenant. Although the Duke was honestly devoted to the navy he was dull-witted, and in spite of the advantage of numbers and the dogged courage of officers and men which so often in English history has made up for stupid leadership, he was wholly unable to cope with de Ruyter's genius. As for the French navy, their ships were superb, the best in Europe, but their officers had no experience and apparently small desire for close fighting. At all events, despite the odds against him, de Ruyter defeated the allies in all four battles, prevented their landing an army of invasion, and broke up their attempt to blockade the coast.
The war was unpopular in England and as it met with ill success it became more so. After the battle of the Texel, in 1673, active operations died down to practically nothing, and at the beginning of the year England made peace. By this time Holland had managed to find other allies on the Continent—Spain and certain German states—and while she had to continue her struggle against Louis XIV by land she was relieved of the menace of her great enemy on the sea. Fifteen years later, by a curious freak of history, a Dutch prince became King William III of England, and the two old enemies became united in alliance. But the Netherlands had exhausted themselves by their protracted struggle. They had saved their independence, but after the close of the 17th century they ceased to be a world power of any consequence.