The Battle of the Kentish Knock (or the Battle of the Zealand Approaches) was a naval battle between the fleets of the Dutch Republic and England, fought on 28 September 1652 (8 October Gregorian calendar), during the First Anglo-Dutch War near the shoal called the Kentish Knock in the North Sea about thirty kilometres east of the mouth of the river Thames. The Dutch fleet, internally divided on political, regional and personal grounds, proved incapable of making a determined effort and was soon forced to withdraw, losing two ships and many casualties. In Dutch the action is called the Slag bij de Hoofden. Backgrounds Dutch Lieutenant-Admiral Maarten Tromp had been suspended by the States-General of the Netherlands after his failure to bring the English to battle off the Shetland Islands in August, and replaced as supreme commander of the confederate Dutch fleet by the Hollandic Vice-Admiral Witte de With of the Admiralty of the Maze. This caused an immediate rift between the provinces of Holland and Zealand as De With was the personal enemy of the commander of the Zealandic fleet, Vice-Admiral Johan Evertsen, who himself had quit service because of a conflict with the States-General. Earlier tensions had been moderated by the fact that both Tromp and Evertsen were staunch Orangists, but De With was a loyal servant of the States regime that had dominated Dutch politics since the death of stadtholder William II of Orange. De With, having for months advocated a more aggressive naval policy aimed at destroying the enemy fleet instead of passively defending the merchant convoys against English attack, now saw an opportunity to concentrate his forces and gain control of the seas. He set out to attack the English fleet at anchor at The Downs near Dover, departing from the Schooneveld on 25 September 1652, and joined the squadron of Vice-Commodore Michiel de Ruyter. The fleet was immediately hit by a storm damaging many vessels. De With also had to protect the trade routes and discovered that nine of De Ruyter's ships, that had been on sea for two months, had to return to port for repairs. De Ruyter suggested that under the circumstances it was better to simply keep luring away the English from merchant fleets while declining to really fight, but De With insisted on delivering a decisive battle, stating: "I shall lustily lead the fleet to the enemy; the devil may