Soult and Murat attacked his rearguard on the 3rd, and learning from his Cossacks that the French corps were being directed so as to swing round and enclose him, he withdrew by a night march and ultimately succeeded in getting his whole army, with the exception of von Lestocq's Prussians, together in the strong position along the Alle, the centre of which is marked by Preussisch-Eylau.