HistoryData
war1781

Siege, part of American Revolutionary War

January 1, 1781

The last major land battle of the American Revolutionary War, resulting in British surrender and leading directly to the Treaty of Paris.

Quick Facts

Year
1781
Category
war

Key Facts

Date of surrender ceremony
October 19, 1781
British soldiers captured
More than 7,000 soldiers
Allied arrival at Yorktown
September 28, 1781
Redoubt No. 10 commander
Lieutenant Colonel Alexander Hamilton
Capitulation terms requested
October 17, 1781

By the Numbers

191,781
Date of surrender ceremony
7,000soldiers
British soldiers captured
281,781
Allied arrival at Yorktown
171,781
Capitulation terms requested

Location

Map of Yorktown, United StatesMap of Yorktown, United StatesYorktown, United States

Cause → Event → Consequence

Cause

Following coordination between Washington and Rochambeau, the French fleet under de Grasse sailed from the West Indies to Chesapeake Bay, defeating the British relief fleet at the Battle of the Chesapeake in early September 1781. This cut off Cornwallis's ability to receive reinforcements or escape by sea, while combined Franco-American land forces moved south from New York to encircle the British position at Yorktown.

Event

Beginning September 28, 1781, American and French forces besieged Yorktown, constructing parallel trenches and conducting intense artillery bombardment. On October 14, Hamilton's column seized Redoubt No. 10 and a French column took Redoubt No. 9, enabling completion of the second parallel. With his defenses collapsing, Cornwallis requested capitulation terms on October 17, and the formal surrender occurred on October 19.

Consequence

The capture of over 7,000 British troops at Yorktown effectively ended large-scale military operations in the American Revolutionary War. Cornwallis's defeat prompted the British government to seek a negotiated settlement, leading to the Treaty of Paris in 1783, which formally recognized the independence of the United States of America.

Belligerents & Mobilization Analysis

Side A

2 belligerents

Continental Army (United States)French Army and Navy
Key Commanders

George Washington, Comte de Rochambeau, Comte de Grasse, Marquis de Lafayette.

Side B

1 belligerent

British Army
Peak Mobilized Forces~7K
Forces vs Casualties ratio
0Mobilized
Key Commanders

Charles Cornwallis, Sir Thomas Graves.

Outcome
Decisive Franco-American victory; British surrender on October 19, 1781

Timeline Context

Timeline around 17811781177817791780178217831784Naval engagement of the Fourth Anglo-Dutch WarBattle fought on 6 January 1781 in St. Helier, JerseyBattle of the American Revolutionary War1781 naval battle of the American RevolutionNaval action of the Anglo-Spanish War (1779–1783)Naval battle of the Fourth Anglo-Dutch War1781 American Revolutionary War battle1781 naval action between Royal Navy and Dutch East India Companysiege-of-yorktown-1781