The Swedish army sent to Germany was only sufficient for taking possession of what had already been conquered by the Allies, but made the all necessary preparations to go on the offensive despite not having the necessary funds. The army's very premise, to suppress Frederick, was found false—on being notified of his victory at Rossbach on 5 November 1757, the Swedish commander Marshal Mattias Alexander von Ungern-Sternberg dared not obey the orders from his government and the French agent Marc René de Montalembert to lead his ill-equipped army in a march on Berlin, instead returning in November 1757 to Swedish Pomerania, where the Swedes were being besieged by the Prussians at Stralsund and Rügen.