Marie-Joseph Paul Yves Roch Gilbert du Motier, Marquis de La Fayette, known in the United States as Lafayette (), 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 Americas seeking glory in it. He was made a major general at age 19 but was initially not given American troops to command.