 Having failed to raise the siege by force of arms, Don Gonzalez and Pappenheim decided to cut the Dutch supply lines and so starve them out of their strong position.However, the besiegers had sufficient supplies in their camps for another two months, so Frederick Henry simply ignored the relief forces' actions and pressed on with the siege.The attackers were faced with a determined resistance from the garrison who made many sorties, particularly against the English approach, but in the end both the approaches reached the ditch.