Charles XII failed to hunt down Augustus II's retreating army and Augustus II's defeat was once again not decisive, as he was able to withdraw and organize new troops. As a result, Charles XII and the main Swedish army operated around Poland to destroy Augustus II's Polish resources and his Saxon division, while also persuading various nobility factions in Poland who opposed Augustus II to depose him as King. In December 1702 Rehnskiöld was commissioned with four infantry and nine cavalry regiments, about 10,000 men, operating independently from the Swedish main army. He was tasked with securing the negotiations between the various noble factions in Warsaw, and to collect money and food from the immediate vicinity to supply the Swedish troops besieging the city of Thorn. He established headquarters near Piotrków Trybunalski, while his troops were mostly stationed in different locations in Greater Poland, where he kept a watchful eye towards the nobility factions fighting for Augustus II. During his debriefings to the royal headquarters, Rehnskiöld exchanged command with Major-General Arvid Axel Mardefelt. In April 1703 Rehnskiöld was promoted to General of cavalry, elevating his prestige during his negotiations with the Polish nobility factions which included Prince James Louis Sobieski, magnate Hieronim Augustyn Lubomirski and Cardinal Michał Stefan Radziejowski. In February 1704 the Warsaw Confederation congregated and agreed to depose Augustus II as King of Poland, since he had lost much of his influence in the kingdom. Rehnskiöld was given the task of securing their deliberations and preventing the troops of Augustus II from advancing eastwards.