Yorktown

Cornwallis Fortifies Yorktown

In August 1781, General Cornwallis moved his army to Yorktown and began constructing an extensive defensive perimeter on the orders of General Henry Clinton in New York, who wanted a deep-water anchorage for the Royal Navy in the Chesapeake. Cornwallis chose the position reluctantly, recognizing that the bluffs above the York River were defensible but that the town was vulnerable to siege if the British navy could not maintain control of the Chesapeake. The fortifications Cornwallis built were substantial: a semicircular line of redoubts, batteries, and connecting trenches stretching from the river above town to the river below. But they were designed to resist a coup de main, not a methodical siege by a numerically superior force with heavy French artillery. The decision to fortify Yorktown was the strategic miscalculation that ended the war.

Washington and Rochambeau March South

Washington and Rochambeau began their march from the New York area to Virginia in mid-August 1781, a movement of approximately 7,000 troops covering nearly 450 miles. The march was one of the great logistical achievements of the war, accomplished with enough speed and secrecy that the British in New York did not realize the allied army had departed until it was too late to intervene. Washington had long favored attacking New York, but Rochambeau and de Grasse persuaded him that the opportunity in Virginia was more promising. The decision to march south — abandoning the New York campaign and gambling everything on a Virginia operation — was the strategic turning point that led to Yorktown.

De Grasse's Fleet Arrives in Chesapeake Bay

Admiral de Grasse's French fleet of 28 ships of the line arrived at the mouth of Chesapeake Bay on August 30, 1781, carrying 3,000 additional French troops. The fleet's arrival transformed the strategic situation in Virginia. De Grasse immediately landed troops to reinforce Lafayette's forces and established naval control of the bay. The French fleet's presence was the essential precondition for the siege. Without de Grasse, Cornwallis could have been reinforced or evacuated by sea, and the allied army's march south would have been for nothing. De Grasse's decision to bring his fleet north from the Caribbean — a temporary commitment that he could not sustain indefinitely — gave Washington a narrow window to win the war.

Battle of the Capes

Admiral de Grasse's French fleet defeated the British navy under Admiral Graves at the mouth of Chesapeake Bay on September 5, 1781. The battle was not particularly dramatic by naval standards — a few hours of inconclusive gunfire — but its strategic consequences were enormous. The British fleet withdrew to New York for repairs, leaving the French in control of the Chesapeake. Without naval superiority, the British could not reinforce or evacuate Cornwallis. The Battle of the Capes sealed the trap that the siege would close. Historians have called it one of the most strategically decisive naval engagements in history, even though neither fleet lost a ship.

Siege of Yorktown

The allied French and American armies began formal siege operations against Cornwallis's fortified position at Yorktown on September 28, 1781. Over the next three weeks, the allies dug parallel trenches that advanced toward the British lines, brought up heavy artillery, and systematically reduced the British defenses. The siege was a textbook military operation, conducted according to European siege doctrine that Rochambeau's experienced engineers understood thoroughly. The allied bombardment was devastating — over 15,000 cannonballs were fired into the British positions. Cornwallis's army, cut off by land and sea, had no reinforcements coming and no escape route. The siege ended with the British surrender on October 19, effectively concluding the war.

Allies Open the First Parallel

On the night of October 6, 1781, allied engineers began digging the first parallel — a trench line approximately 600 yards from the British fortifications. The work was done under cover of darkness, and by morning the trench was deep enough to protect the troops from British fire. Heavy siege guns were moved into position along the line. Washington himself reportedly fired the first cannon on October 9 when the allied artillery opened its bombardment. The volume of fire was devastating, and the British defenses began to crumble under the sustained barrage. The methodical advance of siege lines toward the British positions was European siege warfare at its most professional.

Storming of Redoubts 9 and 10

On the night of October 14, 1781, French troops stormed Redoubt 9 and American troops under Alexander Hamilton stormed Redoubt 10 in coordinated bayonet assaults. Both attacks succeeded within minutes. Hamilton's force captured their objective in approximately ten minutes, suffering relatively light casualties. The capture of the redoubts allowed the allies to extend their siege lines closer to the British defenses, bringing artillery within devastating range. The assaults demonstrated the improved quality of the Continental Army — Hamilton's troops attacked with bayonets, without loaded muskets, maintaining silence and discipline. The fall of the redoubts made Cornwallis's position untenable.

Cornwallis's Failed Escape Across the York River

On the night of October 16, 1781, Cornwallis attempted a desperate evacuation of his army across the York River to Gloucester Point, from where he hoped to break through the allied lines and march north. The first wave of boats made it across, but a violent storm scattered the remaining boats and made further crossings impossible. The failed escape attempt was Cornwallis's last gamble. By morning, with his army divided by the river and the storm abating, he ordered the troops at Gloucester back to Yorktown. Later that morning, a British drummer appeared on the parapet and beat for a parley. The end had come.

Cornwallis Surrenders

On October 19, 1781, the British army marched out of its fortifications at Yorktown and laid down its arms in a formal surrender ceremony. Cornwallis himself did not attend, claiming illness, and sent Brigadier General Charles O'Hara in his place. O'Hara offered the sword of surrender to Rochambeau, who directed him to Washington. Washington, observing the protocol of rank, directed O'Hara to his own second-in-command, General Benjamin Lincoln. Over 7,000 British and Hessian troops became prisoners of war. The surrender effectively ended major military operations in the Revolution, though the formal Treaty of Paris was not signed until September 1783. When news reached London, Prime Minister Lord North reportedly exclaimed, "Oh God, it is all over."

British Army Surrenders: The October 19 Ceremony

On October 19, 1781, the British army marched out of Yorktown through a corridor of French and American troops to lay down their arms in a field south of town. Cornwallis, claiming illness, sent Brigadier General Charles O'Hara in his place. O'Hara first approached Rochambeau to surrender — either a mistake or a deliberate slight to Washington — and Rochambeau directed him to Washington, who directed him in turn to General Benjamin Lincoln to receive the sword. The British band played "The World Turned Upside Down," though the evidence for this specific tune is disputed. The ceremony lasted several hours. Some 8,000 British and German soldiers laid down their arms. It was the largest British surrender of the entire war and effectively ended British military capacity to continue fighting in America.