 Aware of French negotiations with the Dutch over dividing the Spanish Netherlands, Charles demanded Walcheren, Cadzand and Sluys, whose possession would give him control of Dutch sea routes.Despite the recent war, tensions between England and the Republic significantly diminished after 1667 and there was minimal support for a French alliance against them.The exchange of New York for the spice island of Run settled two major areas of dispute, both were concerned by French aims in the Low Countries, and English merchants were also affected by French tariffs.