The Battle of Waterloo in 1815 marked the end of the Napoleonic Wars. Fought on June 18, 1815, this decisive battle saw the forces of the Duke of Wellington, supported by Prussian troops under Field Marshal Gebhard Leberecht von Blücher, face off against Napoleon Bonaparte’s army. The defeat of Napoleon at Waterloo effectively ended his rule as Emperor of the French and led to his exile to Saint Helena. This battle not only concluded the Napoleonic Wars but also significantly reshaped European geopolitics, resulting in the Congress of Vienna, which sought to restore stability and balance of power across the continent.