Marie-Joseph Paul Yves Roch Gilbert du Motier, Marquis de La Fayette (French: [ʒilbɛʁ dy mɔtje maʁki d(ə) la fajɛt]; 6 September 1757 – 20 May 1834), known in the United States as Lafayette (/ˌlɑːfiˈɛt, ˌlæf-/), was a French military officer and politician who volunteered to join the Continental Army, led by General George Washington, in the American Revolutionary War. Lafayette commanded Continental Army troops in the decisive siege of Yorktown in 1781, the Revolutionary War's final major battle, which secured American independence. After returning to France, Lafayette became a key figure in the French Revolution of 1789 and the July Revolution of 1830 and continues to be celebrated as a hero in both France and the United States.
Lafayette was born into a wealthy land-owning family in Chavaniac in the province of Auvergne in south-central France. He followed the family's martial tradition and was commissioned an officer at age 13. He became convinced that the American revolutionary cause was noble, and he traveled to the New World seeking glory in it. He was made a major general at age 19 but was initially not given American troops to command. He fought with the Continental Army at the Battle of Brandywine near Chadds Ford, Pennsylvania, where he was wounded but organized an orderly retreat, and he served with distinction in the Battle of Rhode Island. In the middle of the war, he returned home to France to lobby for an increase in French support for the American Revolution. He returned to America in 1780 and was given senior positions in the Continental Army. In 1781, troops under his command in Virginia blocked a British army led by Lord Cornwallis until other American and French forces could position themselves for the decisive siege of Yorktown.