While the battle resulted in a French field victory and allowed for a successful pursuit of the Russian army, it failed to produce the decisive engagement that Napoleon was seeking.
[1][2] After crushing the Prussian forces in 1806, Napoleon and his Grande Armée advanced east into the eastern provinces of Prussia, with the aim of bringing the Russian there army to give decisive battle.
[5] As chance would have it, the Russians intercepted a crucial dispatch, in which the Chief of Staff, Louis Alexandre Berthier, was explaining the entire plan to the commander of the left wing corps, Jean-Baptiste Bernadotte.
[2] Towards the end of the afternoon, Soult, with the 24th Light and 4th Line regiments began his flanking attack and, after some ferocious combat, pushed the Russians beyond the Alle, capturing an intact Bergfriede bridge.
With night falling and his position completely compromised, Bennigsen decided to hasten his retreat and ordered Kamensky to extricate his force and withdraw to Deppen.