Not suspecting the strength of De Grasse, he hoped to fall in with one or the other of their squadrons, and to fight it separately.

Early in the morning of the 5th of September, while the French fleet lay at anchor just within the Chesapeake, the British squadron was descried. Orders were immediately given by De Grasse to form the line, and put to sea. About four in the afternoon, the action commenced between the headmost ships, and continued until sunset. Several ships were much damaged, but neither admiral could claim the victory. For five successive days the hostile fleets continued within view of each other. After which, De Grasse returned to his former station within the capes. At his anchorage ground he found De Barras with the squadron from Newport, and fourteen transports laden with heavy artillery, and military stores proper for carrying on a siege. The British admiral approaching the capes, found the entrance of the Chesapeake defended by a force with which he was unable to contend, and therefore bore away for New York.

Plan of operations against Lord Cornwallis.

General Washington had determined to entrust the defence of the Hudson to General Heath, and to command the southern expedition in person. All the French, and a detachment amounting to upwards of two thousand men from the continental army, were destined for this service. On the 19th of August, Hazen's regiment and the Jersey line, were directed to pass the Hudson at Dobbs' ferry, and take a position between Springfield and Chatham, where they were to cover some bake-houses to be constructed in the neighbourhood, for the purpose of veiling the real designs of the American chief, and of exciting fears for Staten Island. The combined armies march for the Chesapeake.On the same day, the whole army was put in motion; and on the twenty-fifth the passage of the river was completed.

To conceal as long as possible the real object of this movement, the march of the army was continued until the thirty-first, in such a direction as to keep up fears for New York; and a considerable degree of address was used to countenance the opinion that the real design was against that place. The letters which had been intercepted by Sir Henry Clinton favoured this deception; and so strong was the impression they made that, even after it became necessary for the combined army to leave the route leading down the Hudson, he is stated to have retained his fears for New York, and not to have suspected the real object of his adversary until he had approached the Delaware;[83] and it had become too late to obstruct the progress of the allied army towards Virginia. He then resolved to make every exertion in his power to relieve Lord Cornwallis, and in the mean time to act offensively in the north. September 6.An expedition was planned against New London, in Connecticut, and a strong detachment, under the command of General Arnold, was embarked on board a fleet of transports, which landed early in the morning of the 6th of September on both sides the harbour, about three miles from the town.

New London is a seaport town on the west side of the Thames. A fort called fort Trumbull, and a redoubt had been constructed just below it, on the same side of the river; and opposite to it, on Groton hill, was fort Griswold, a strong square fortification, but not fully manned. General Arnold, who commanded in person the troops that landed on the western side of the harbour, advanced immediately against the posts on that side. These being untenable, were evacuated on his approach; and he took possession of them with inconsiderable loss. To prevent the escape of the vessels up the river, Lieutenant Colonel Eyre, who commanded the division which landed on the Groton side of the harbour, had been ordered to storm fort Griswold, which had been represented to Arnold as too incomplete to make any serious resistance. But the place being of some strength, and the approach to it difficult, Colonel Ledyard, who commanded it with a garrison of one hundred and sixty men, determined to defend it. On his refusing to surrender, the British assaulted it on three sides, and overcoming the difficulties opposed to them, made a lodgement on the ditch and fraized work, and entered the embrasures with charged bayonets. Further resistance being hopeless, the action ceased on the part of the Americans, and Colonel Ledyard delivered his sword to the commanding officer of the assailants. Irritated by the obstinacy of the defence, and the loss sustained in the assault, the British officer on whom the command had devolved, tarnished the glory of victory by the inhuman use he made of it. Instead of respecting, with the generous spirit of a soldier, the gallantry which he had subdued, he indulged the vindictive feelings which had been roused by the slaughter of his troops. In the account given of this affair by Governor Trumbull to General Washington, he says, "The sword presented by Colonel Ledyard was immediately plunged into his bosom, and the carnage was kept up until the greater part of the garrison was killed or wounded."

In this fierce assault, Colonel Eyre was killed, and Major Montgomery, the second in command, also fell, as he entered the American works. The total loss of the assailants was not much less than two hundred men.

The town of New London, and the stores contained in it, were consumed by fire. To escape the odium which invariably attends the wanton destruction of private property, this fire was attributed to accident; but all the American accounts unite in declaring it to have been intentional.

September 6.

The march of General Washington was not arrested by this excursion into New England. Having made the arrangements for the transportation of his army down the Chesapeake, he proceeded in person to Virginia, attended by the Count de Rochambeau, and the Chevalier de Chatelleux; and, on the 14th of September, reached Williamsburg[84] accompanied by Rochambeau, Chatelleux, Knox, and Du Portail, he immediately repaired to the fleet, and a plan of co-operation was adjusted on board the Ville de Paris, conforming to his wish in every respect, except that the Count de Grasse declined complying with a proposition to station some of his ships in the river above Yorktown, thinking it too hazardous.