American forces under Andrew Jackson decisively defeated a British army attempting to seize New Orleans, inflicting roughly 2,000 British casualties against fewer than 100 American losses. The battle, fought weeks after the Treaty of Ghent had already ended the War of 1812, made Jackson a national hero and propelled him toward the presidency.
News traveled slowly across the Atlantic in 1814, and by the time British and American diplomats signed the Treaty of Ghent on December 24, ending the War of 1812, a massive British invasion force was already bearing down on New Orleans, the gateway to the Mississippi River and the entire American interior. Neither side in Louisiana knew the war was technically over.
Andrew Jackson, commanding a scrappy coalition of U.S. Army regulars, Tennessee and Kentucky militia, free Black soldiers, Choctaw warriors, and pirates led by Jean Lafitte, built earthworks along the Rodriguez Canal south of the city. When 8,000 British veterans, fresh from campaigns against Napoleon, launched a frontal assault on January 8, they marched into devastating artillery and rifle fire. Within thirty minutes, the battle was effectively over: British General Edward Pakenham was killed, and his army suffered roughly 2,000 casualties compared to fewer than 100 for the Americans.
The victory, though strategically meaningless given the already-signed treaty, had enormous psychological impact. It convinced Americans their young republic could stand against European military power, made Jackson a household name, and helped propel him to the presidency in 1828. The Battle of New Orleans remains one of history's most lopsided military victories fought, ironically, for a war already over.