Kalisz Alliance Treaty of 1813

a treaty between Russia and Prussia on war against the French emperor Napoleon I. The treaty was signed after the expulsion of the remnants of Napoleon’s army from Russia. It was signed by Field Marshal M. I. Kutuzov and the Prussian chancellor K. A. Hardenberg in Breslau on Feb. 15 (27), 1813, and at the headquarters of Alexander I in the city of Kalisz the next day. Russia and Prussia agreed to conduct joint military activities and not to conclude a separate peace or armistice. Secret points of the Kalisz Alliance Treaty stipulated the restoration of Prussia to its 1806 borders and the increase of its territory at the expense of the North German states. The Kalisz Alliance Treaty marked the beginning of the Sixth Coalition against Napoleon.