 The Capitulation of Franzburg required all towns except for ducal residences to take in imperial troops, and Wallenstein had ordered Arnim to occupy the Pomeranian ports and seize their vessels already in October.Stralsund however was unwilling to give in, as its status as a Hanseatic town had provided for considerable self-determination and independence from the Pomeranian dukes.Thus, Stralsund ignored Bogislaw's order to adhere to the capitulation, issued since February 1628, and instead turned first to Denmark and then to Sweden for support.