War of the Sixth Coalition: An impromptu battle takes place when French and Prussian-Russian forces accidentally run into each other near Liegnitz, Prussia (now Legnica, Poland).

The War of the Sixth Coalition, sometimes known in Germany as the Wars of Liberation saw a coalition of Austria, Prussia, Russia, Spain, the United Kingdom, Portugal, Sweden, Sardinia, and a number of German states defeat the First French Empire and force Napoleon into exile on Elba. Following the…