Battle of Eylau

A bloody battle fought near Eylau in East Prussia on 7–8 February 1807 between Napoleon’s French army and Russian-Prussian forces. Neither side secured a decisive victory.

Battle of Eylau order of battle: The forces and commanders arrayed for the Battle of Eylau. The armies’ composition and leadership shaped the battle’s shifting balance.
War of the Fourth Coalition: A 1806–1807 war between Napoleonic France and a coalition led by Prussia and Russia. Eylau was a major battle in this coalition war.
Battle of Friedland: A decisive French victory over Russia fought on 14 June 1807. The French victory later forced Russia to seek peace after Eylau failed to settle the war.
Eylau snowstorm: A severe snowstorm that reduced visibility during the Battle of Eylau. The storm disoriented French units and contributed to the crisis in the center.
Augereau’s VII Corps: A French corps commanded by Pierre Augereau during the Napoleonic Wars. Its advance through a snowstorm exposed it to devastating Russian artillery fire.
Battle of Jena–Auerstedt: A pair of decisive French victories over Prussia fought on 14 October 1806. Prussia’s defeat led to French occupation and helped draw Russia deeper into the war.
Treaties of Tilsit: Agreements signed in 1807 that ended Russia’s and Prussia’s wars with Napoleonic France. They concluded the campaign in which Eylau had demonstrated the costs of resistance.
Charge of the 10,700: A massed French cavalry charge at Eylau commonly estimated at about 10,700 horsemen. Murat’s charge became the battle’s most famous response to the threatened French center.
Russian artillery: The artillery arm of the Russian Imperial Army. Russian guns inflicted severe losses on French troops blinded and disoriented by snow.
French invasion of East Prussia: The French campaign that advanced into East Prussia during the winter of 1806–1807. The pursuit of Russian forces through East Prussia led to the confrontation at Eylau.

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Pyotr BagrationRelated: Bagration fought in the campaign’s costly struggle against Napoleon.