The French Invasion of Russia (French: Campagne de Russie) (Russian: Отечественная война 1812 года, Patriotic War of 1812) began on 24 June 1812 when Napoleon's Grande Armée crossed the Neman River in an attempt to engage and defeat the Russian army.[6] Napoleon hoped to compel Tsar Alexander I of Russia to cease trading with British merchants through proxies in an effort to pressure the United Kingdom to sue for peace.[7] The official political aim of the campaign was to liberate Poland from the threat of Russia. Napoleon named the campaign the Second Polish War to curry favor with the Poles and provide a political pretense for his actions.[8]
The Grande Armée was a very large force, numbering nearly half a million men from several different nations. Through a series of long marches Napoleon pushed the army rapidly through Western Russia in an attempt to bring the Russian army to battle, winning a number of minor engagements and a major battle at Smolensk in August. Napoleon hoped the battle would mean an end of the march into Russia, but the Russian army slipped away from the engagement and continued to retreat into Russia, while leaving Smolensk to burn.[9] Plans Napoleon had made to quarter at Smolensk were abandoned, and he pressed his army on after the Russians.[10]