Intensification of anti-Polish policies started from 1830 onwards. As the November Uprising in Russian-held Congress Poland began, Prussians closely worked with Russia in regards to stopping any Polish independence drive. A state of emergency was introduced in the Duchy, police surveillance started on a large scale and 80,000 soldiers were moved into the area. The Prussian Foreign Minister openly declared that Prussia would oppose independence of Poland as it would mean territories taken in the Partitions of Poland could be claimed by it. Russians soldiers fighting Poles received food supplies, equipment, and intelligence from Prussia. While Prussian generals even wanted to march into Congress Poland, the threat of French intervention stopped those plans. The administrator of the region became Eduard Heinrich Flotwell, a self-declared enemy of Poles, who openly called for Germanization and superiority of German culture over Polish people. Supported by Karl Grolman, a Prussian general, a program was presented that envisioned removing Poles from all offices, courts, judiciary system, and local administration, controlling the clergy, and making peasants loyal through enforced military service. Schools were to be Germanized as well. Those plans were supported by such prominent public figures such as Carl von Clausewitz, August Neidhardt von Gneisenau, Theodor von Schon, Wilhelm von Humboldt.