On June 18, 1815, one of the most decisive battles in military history was fought in Belgian fields twenty miles southeast of Brussels. Within a short 100 days, Napoléon, former emperor of France, had returned from exile on the island of Elba, again seized power, quickly assembled an army, and marched to defeat the dispersed British and Prussian armies now preparing to invade France.

Napoléon invaded Belgium on June15th, defeated the Prussians at the Battle of Ligny on the 16th and after a day of pursuit, faced the British and Dutch army commanded by Wellington. Aided by superb defensive tactics and the timely arrival of Prussian reinforcements, Wellington defeated the French in the great Battle of Waterloo, ending forever the military ambitions of the great Napoléon.