June 18.

The Marquis followed with cautious circumspection. On the 18th of June, he was reinforced by four or five hundred new levies under the Baron Steuben, which augmented his army to four thousand men, of whom two thousand were regulars. That of Lord Cornwallis was, probably, rather more numerous.

As the British army retreated to Williamsburg, Lafayette, who sought a partial, though he avoided a general engagement, pressed its rear with his light parties. Colonel Simcoe, who covered the retreat, was overtaken by Colonel Butler about six miles from Williamsburg, and a sharp action ensued. The Americans claimed the advantage; but were compelled to retire by the approach of the whole British army.

In the bold and rapid course taken by Lord Cornwallis through the lower and central parts of Virginia, much private as well as public property[77] was destroyed; and the resources of the state were considerably diminished; but no solid advantage was obtained. Although, from various causes, especially from a want of arms, and from that general repugnance which a harassed, unpaid militia, will universally manifest to military service, less resistance was encountered than was to be expected from the strength and population of the state; no disposition was openly manifested to join the royal standard, or to withdraw from the contest. The Marquis complained of "much slowness, and much carelessness in the country; but the dispositions of the people," he said, "were good, and they required only to be awakened." This, he thought, would be best effected by the presence of General Washington, an event for which he expressed the most anxious solicitude. But Washington deemed it of more importance to remain on the Hudson, for the purpose of digesting and conducting a grand plan of combined operations then meditated against New York, by the execution of which he counted more certainly on relieving the southern states, than by any other measure it was in his power to adopt.

General Washington's letters are intercepted.

An express carrying letters, communicating to congress the result of his consultations on this subject, with the commanders of the land and naval forces of France, was intercepted in Jersey. The interesting disclosure made by these letters, alarmed Sir Henry Clinton for the safety of New York, and determined him to require the return of a part of the troops in Virginia. Supposing himself too weak, after complying with this requisition, to remain at Williamsburg, Lord Cornwallis took the resolution of retiring to Portsmouth.

In pursuance of this resolution, he marched from Williamsburg and encamped in such a manner as to cover the ford into the island of Jamestown. On the same evening, the Queen's rangers crossed over into the island; and the two succeeding days were employed in passing over the baggage.

The morning after the evacuation of Williamsburg, Lafayette changed his position, and pushed his best troops within nine miles of the British camp, with the intention of attempting their rear, when the main body should have passed into Jamestown.

Suspecting his design, Lord Cornwallis encamped the greater part of his army on the main land as compactly as possible, and displayed a few troops on the island in such a manner as, in appearance, to magnify their numbers. All the intelligence received by Lafayette concurred in the representation that the greater part of the British army had passed over to the island in the night. July 6.Believing this to be the fact, he detached some riflemen to harass their out-posts, while he advanced at the head of the continental troops in order to cut off the rear.

Every appearance was calculated to countenance the opinion he had formed. The British light parties were drawn in, and the piquets were forced by the riflemen without much resistance, but an advanced post which covered the encampment from the view of the Americans, was perseveringly maintained, though three of the officers commanding it were successively picked off by the riflemen. Lafayette, who arrived a little before sunset, suspected from the obstinacy with which this post was maintained, that it covered more than a rear guard, and determined to reconnoitre the camp, and judge of its strength from his own observation.[78] It was in a great measure concealed by woods; but from a tongue of land stretching into the river, he perceived the British force to be much more considerable than had been supposed, and hastened to call off his men.