[2] Maurice instead went directly to the North - his target was the town and fortress of Delfzijl which lay on the shores of the Dollart, a large inlet dividing the province of Groningen from the German district of Emden, a Spanish supply base.

[4] Sure enough after a heavy bombardment in the first few days of the siege the Spanish garrison, realising no relief was forthcoming, had had enough and began negotiations for surrender on 2 July.

[2] Maurice eventually agreed and the Spanish garrison surrendered and was allowed to leave (except for the disloyal and defectors) under terms for Groningen.

[3] Maurice, after taking Delfzijl, reinforced the fortifications there according to the original plans of Johan van den Kornput and placed a small garrison of Dutch and English inside.

Maurice and the Dutch and English army instead had to come before Knodsenburg where they defeated the Duke of Parma attempting to besiege the place.