#30, Battle of Sedan: The Single Day That Destroyed the French Empire
The Battle of Sedan on September 1, 1870, killed approximately 17,000 French and 9,000 Prussian soldiers, with over 100,000 French troops, including Emperor Napoleon III himself, surrendering the following day. It was the most decisive single battle of the 19th century, destroying the Second French Empire in 24 hours and establishing Prussian-led Germany as the dominant military power in Europe.
Helmuth von Moltke the Elder's Prussian armies encircled Marshal MacMahon's Army of Châlons against the Meuse River and the Belgian frontier, creating an inescapable pocket. Krupp breech-loading artillery, superior to anything the French possessed, pounded the trapped army from surrounding heights while French cavalry launched suicidal charges to buy time for a breakout that never came. General Margueritte's chasseurs d'Afrique charged directly into massed Prussian rifle fire in what King Wilhelm I of Prussia called "Ah, les braves gens!", brave men indeed, but wasted. Napoleon III surrendered with 104,000 troops, and when news reached Paris, mobs overthrew the Empire and declared the Third Republic. Sedan's humiliation burned so deeply into French national consciousness that it directly influenced French strategic planning for the next 70 years.
