 The Act of Navigation was modified in favour of the Dutch by England agreeing to treat Germany as part of the Netherlands' commercial hinterland, so that Dutch ships would now be allowed to carry German goods to English ports.In the same date and also at Breda, a public treaty was concluded between England and France that stipulated the return to England of the former English part of St Christopher and the islands of Antigua and Montserrat, all of which the French had occupied in the war, and that England should surrender "Acadia" to France, although the extent of Acadia was not defined.This public treaty had been preceded by a secret treaty signed on 17 April in which, in addition to these exchanges of territory, Louis and Charles agreed not to enter into alliances opposed to the interests of the other, by which Louis secured the neutrality of England in the war he planned against Spain.