Cornwallis Surrenders at Yorktown After 3-Week Siege as French Alliance Seals American Victory
Updated
Updated · FRANCE 24 English · Jul 4
Cornwallis Surrenders at Yorktown After 3-Week Siege as French Alliance Seals American Victory
3 articles · Updated · FRANCE 24 English · Jul 4
Summary
October 19, 1781 marked the war’s decisive turn when British General Charles Cornwallis surrendered at Yorktown after allied American and French forces trapped his army.
French intervention made that siege possible: Admiral de Grasse’s fleet blocked Chesapeake Bay, while Rochambeau’s nearly 6,000 troops joined George Washington after France formally entered the war in 1778.
Saratoga in 1777 pushed Louis XVI from covert aid to open backing, leading France to recognize US independence on December 17, 1777 and sign military and commercial treaties on February 6, 1778.
The victory effectively sealed Britain’s defeat, and the Treaty of Paris on September 3, 1783 ended eight years of war by compelling London to recognize American independence.
France spent more than 1 billion livres on the conflict, weakening its own finances even as its support helped establish the United States and spread ideas that later fed the French Revolution.
Did France's support for American liberty ultimately doom its own monarchy to the guillotine?
Without French ships and soldiers at Yorktown, would the American experiment have been extinguished before it began?
Was the Franco-American alliance born from shared ideals, or was it simply a cold calculation to defeat Britain?
The Siege of Yorktown: How Franco-American Alliance Secured U.S. Independence in 1781
Overview
The decisive victory at Yorktown was achieved through careful coordination between American and French forces. General Washington instructed Lafayette to block Cornwallis’s escape by land, while Washington’s own troops, reinforced by Rochambeau’s French army, marched rapidly south from New York. Their plan relied on the crucial support of the French fleet under Count de Grasse, whose naval presence prevented British escape or reinforcements by sea. This combined land and naval strategy trapped the British at Yorktown, leading to their surrender and marking a turning point in the American Revolution.