Owing to the weakness of his garrison, occasioned by sickness and the fire of the besiegers, Cornwallis could not spare large sallying parties, but, in the present distressing crisis, he resolved to make every effort to impede the progress of the besiegers, and to preserve his post to the last extremity. For this purpose, a little before daybreak on the morning of the 16th of October (1781), about 350 men, under the command of Lieutenant-Colonel Abercrombie, sallied out against two batteries, which seemed in the greatest state of forwardness. They attacked with great impetuosity, killed or wounded a considerable number of the French troops, who had charge of the works, spiked eleven guns, and returned with little loss. This exploit was of no permanent advantage to the garrison, for the guns, having been hastily spiked, were soon again rendered fit for service.

About 4 in the afternoon of the 16th of October, several batteries of the second parallel opened on the garrison, and it was obvious that, in the course of next day, all the batteries of that parallel, mounting a most formidable artillery, would be ready to play on the town. The shattered works of the garrison were in no condition to sustain such a tremendous fire. In the whole front which was attacked the British could not show a single gun, and their shells were nearly exhausted. In this extremity Cornwallis formed the desperate resolution of crossing the river during the night with his effective force and attempting to escape to the northward. His plan was to leave behind his sick, baggage, and all encumbrances; to attack de Choisé, who commanded on the Gloucester side, with his whole force; to mount his own infantry, partly with the hostile cavalry which he had no doubt of seizing, and partly with such horses as he might find by the way; to hasten toward the fords of the great rivers in the upper country, and then, turning northward, to pass through Maryland, Pennsylvania, and the Jerseys, and join the army at New York. The plan was hazardous, and presented little prospect of success; but in the forlorn circumstances of the garrison anything that offered a glimpse of hope was reckoned preferable to the humiliation of an immediate surrender.

In prosecution of this perilous enterprise the light infantry, most of the guards, and a part of the Twenty-third regiment embarked in boats, passed the river, and landed at Gloucester point before midnight. A storm then arose, which rendered the return of the boats and the transportation of the rest of the troops equally impracticable. In that divided state of the British forces the morning of the 17th of October (1781) dawned, when the batteries of the combined armies opened on the garrison at Yorktown. As the attempt to escape was entirely defeated by the storm, the troops that had been carried to Gloucester point were brought back in the course of the forenoon without much loss, though the passage was exposed to the artillery of the besiegers. The British works were in ruins, the garrison was weakened by disease and death, and exhausted by incessant fatigue. Every ray of hope was extinguished. It would have been madness any longer to attempt to defend the post and to expose the brave garrison to the danger of an assault, which would soon have been made on the place.

At 10 in the forenoon of the 17th Cornwallis sent a flag of truce with a letter to Washington, proposing a cessation of hostilities for twenty-four hours, in order to give time to adjust terms for the surrender of the forts at Yorktown and Gloucester point. To this letter Washington immediately returned an answer, expressing his ardent desire to spare the further effusion of blood and his readiness to listen to such terms as were admissible, but that he could not consent to lose time in fruitless negotiations, and desired that, previous to the meeting of commissioners, his lordship's proposals should be transmitted in writing, for which purpose a suspension of hostilities for two hours should be granted.

The terms offered by Cornwallis, although not all deemed admissible, were such as induced the opinion that no great difficulty would occur in adjusting the conditions of capitulation, and the suspension of hostilities was continued through the night. Meanwhile, in order to avoid the delay of useless discussion, Washington drew up and transmitted to Cornwallis such articles as he was willing to grant, informing his lordship that, if he approved of them, commissioners might be immediately appointed to reduce them to form. Accordingly, Viscount Noailles and Lieutenant-Colonel Laurens, whose father was then a prisoner in the Tower of London, on the 18th met Colonel Dundas and Major Ross of the British army at Moore's house, in the rear of the first parallel. They prepared a rough draft, but were unable definitively to arrange the terms of capitulation.

The draught was to be submitted to Cornwallis, but Washington, resolved to admit of no delay, directed the articles to be transcribed; and, on the morning of the 19th, sent them to his lordship, with a letter expressing his expectation that they would be signed by 11 and that the garrison would march out at 2 in the afternoon. {4} Finding that no better terms could be obtained, Cornwallis submitted to a painful necessity, and, on the 19th of October, surrendered the posts of Yorktown and Gloucester point to the combined armies of America and France, on condition that his troops should receive the same honors of war which had been granted to the garrison of Charleston when it surrendered to Sir Henry Clinton. The army, artillery, arms, accoutrements, military chest, and public stores of every description were surrendered to Washington; the ships in the harbor and the seamen to Count de Grasse.

Cornwallis wished to obtain permission for his European troops to return home, on condition of not serving against America, France, or their allies during the war, but this was refused, and it was agreed that they should remain prisoners of war in Virginia, Maryland, and Pennsylvania, accompanied by a due proportion of officers for their protection and government. The British general was also desirous of securing from punishment such Americans as had joined the royal standard, but this was refused, on the plea that it was a point which belonged to the civil authority and on which the military power was not competent to decide. But the end was gained in an indirect way, for Cornwallis was permitted to send the Bonetta sloop-of-war unsearched to New York, with dispatches to the Commander-in-Chief and to put on board as many soldiers as he thought proper, to be accounted for in any subsequent exchange. This was understood to be a tacit permission to send off the most obnoxious of the Americans, which was accordingly done.

The officers and soldiers were allowed to retain their private property. Such officers as were not required to remain with the troops were permitted to return to Europe or to reside in any part of America not in possession of the British troops.

Dr. Thacher, who was present during the whole siege, thus describes the surrender: "At about 12 o'clock the combined army was arranged and drawn up in two lines, extending more than a mile in length. The Americans were drawn up in a line on the right side of the road, and the French occupied the left. At the head of the former the great American commander, mounted on his noble courser, took his station, attended by his aides. At the head of the latter was posted the excellent Count Rochambeau and his suite. The French troops, in complete uniform, displayed a noble and martial appearance; their band of music, of which the timbrel formed a part, is a delightful novelty, and produced, while marching to the ground, a most enchanting effect. The Americans, though not all in uniform nor their dress so neat, yet exhibited an erect, soldierly air and every countenance beamed with satisfaction and joy. The concourse of spectators from the country was prodigious, in point of numbers nearly equal to the military, but universal silence and order prevailed. It was about 2 o'clock when the captive army advanced through the line formed for their reception. Every eye was prepared to gaze on Lord Cornwallis, the object of peculiar interest and solicitude, but he disappointed our anxious expectations. Pretending indisposition, he made General O'Hara his substitute as the leader of his army. This officer was followed by the conquered troops in a slow and solemn step, with shouldered arms, colors cased, and drums beating a British march. Having arrived at the head of the line, General O'Hara, elegantly mounted, advanced to his Excellency, the Commander-in-Chief, taking off his hat and apologizing for the nonappearance of Earl Cornwallis. With his usual dignity and politeness, his Excellency pointed to Major-General Lincoln for directions, by whom the British army was conducted into a spacious field, where it was intended they should ground their arms. The royal troops, while marching through the line formed by the allied army, exhibited a decent and neat appearance as respects arms and clothing, for their commander opened his store and directed every soldier to be furnished with a new suit complete prior to the capitulation. But in their line of march we remarked a disorderly and unsoldierlike conduct; their step was irregular and their ranks frequently broken. But it was in the field, when they came to the last act of the drama, that the spirit and pride of the British soldier was put to the severest test. Here their mortification could not be concealed. Some of the platoon officers appeared to be exceedingly chagrined when giving the word, 'Ground arms!' and I am a witness that they performed this duty in a very unofficerlike manner and that many of the soldiers manifested a sullen temper, throwing their arms on the pile with violence, as if determined to render them useless. This irregularity, however, was checked by the authority of General Lincoln. After having grounded their arms and divested themselves of their accoutrements, the captive troops were conducted back to Yorktown and guarded by our troops until they could be conducted to the place of their destination."

Congress bestowed its thanks freely and fully upon the Commander-in-Chief, Count de Rochambeau, Count de Grasse, and the various officers of the different corps, and the brave soldiers under their command. Two stands of colors, trophies of war, were voted to Washington and two pieces of cannon to Rochambeau and de Grasse, and it was also voted that a marble column to commemorate the alliance and the victory should be erected in Yorktown. On the day after the surrender the general orders closed as follows: "Divine service shall be performed tomorrow in the different brigades and divisions. The Commander-in-Chief recommends that all the troops that are not upon duty do assist at it with a serious deportment and that sensibility of heart which the recollection of the surprising and particular interposition of Providence in our favor claims." A proclamation was also issued by Congress appointing the 13th of December as a day of thanksgiving and prayer, on account of this signal and manifest favor of Divine Providence in behalf of our country.