Why Napoleon Invaded Russia in 1812

Napoleon’s Grande Armee

When Napoleon’s Grande Armee crossed the Nemen river into the Russian Empire in 1812, the die had been cast. In the years between the peace of Tilsit and the war against Russia, Tsar Alexander I and Emperor Napoleon had praised each other and Russia had even joined the continental blockade of Napoleon’s arch enemy Great Britain. Still, in 1811 both sides saw war as inevitable.
 
Credit to : Real Time History