The battle took place South of Brussels in Belgium. It was The Duke of Wellington, Marshal Blucher and the Prince of Orange against the Emperor Napoleon. The size of the armies were 23,000 British troops with 44,000 allied troops and 160 guns against 74,000 French troops and 250 guns. The winners of the battle were The British, Germans, Belgians, Dutch and Prussians. The battle of Waterloo marked the end of Napoleons career.