By vigorous efforts on both sides the damaged fleets were rapidly repaired. De Ruyter was the first to put to sea (July 9) with some ninety ships; three weeks later Monk and Rupert left the Thames with an equal force. The encounter took place on August 4. It ended in a decisive English victory after some fierce and obstinate fighting. The Dutch van, after losing its two admirals, Evertsen and De Vries, gave way. Monk and Rupert then attacked with a superior force the centre under De Ruyter himself, who to save his fleet from destruction was compelled to take refuge behind the Dutch shoals. Meanwhile the squadron under Tromp, driving before it the rear squadron of the English, had become separated and unable to come to De Ruyter’s assistance. For this abandonment he was bitterly reproached by De Ruyter and accused of desertion. The quarrel necessitated Tromp’s being deprived of his command, as the States-General could not afford to lose the services of the admiral-in-chief.
For a time the English were now masters of the narrow seas, and, cruising along the Dutch coast, destroyed a great number of Dutch merchantmen, made some rich prizes and even landed on the island of Terschelling, which was pillaged. Lack of supplies at length compelled them to withdraw for the purpose of revictualling. On this De Ruyter, accompanied by Cornelis de Witt as special commissioner, sailed out in the hopes of effecting a junction with De Beaufort. Rupert also put to sea again, but storms prevented a meeting between the fleets and sickness also seriously interfered with their efficiency. De Ruyter himself fell ill; and, though John de Witt was himself with the fleet, no further operations were attempted. Both sides had become weary and exhausted and anxious for peace.