In March, 1781, de Grasse sailed from Brest with a fleet of 26 ships of the line and a large convoy. Five of his battleships were detached for service in the East, under Suffren, of whom we shall hear more later. The rest proceeded to the Caribbean. On arriving at Martinique de Grasse had an excellent opportunity to beat Hood, who had an inferior force; but like his predecessors, d'Estaing and de Guichen, he was content to follow a defensive policy, excusing himself on the ground of not exposing his convoy. While at Cape Haitien he received messages from Rochambeau and Washington urging his coöperation with the campaign in America. To his credit be it said that on this occasion he acted promptly and skillfully, and the results were of great moment.

At this time the British had subdued Georgia and South Carolina, and Cornwallis was attempting to carry the conquest through North Carolina. In order to keep in touch with his source of supplies the sea, however, he was compelled to fall back to Wilmington. From there, under orders from General Clinton, he marched north to Yorktown, Virginia, where he was joined by a small force of infantry. Washington and Rochambeau had agreed on the necessity of getting the coöperation of the West Indies fleet in an offensive directed either at Clinton in New York or at Cornwallis at Yorktown. Rochambeau preferred the latter alternative, because it involved fewer difficulties, and the message to de Grasse was accompanied by a private memorandum from him to the effect that he preferred the Chesapeake as the scene of operations. Accordingly de Grasse sent the messenger frigate back with word of his intention to go to Chesapeake Bay. He then made skillful arrangements for the transport of all available troops, and set sail with every ship he could muster, steering by the less frequented Old Bahama Channel in order to screen his movement.

SCENE OF THE YORKTOWN CAMPAIGN

On August 30 (1781) de Grasse anchored in Lynnhaven Bay, just inside the Chesapeake Capes, with 28 ships of the line. The two British guard frigates were found stupidly at anchor inside the bay; one was taken and the other chased up the York river. De Grasse then landed the troops he had brought with him, and these made a welcome reënforcement to Lafayette, who was then opposing Cornwallis. At the same time Washington was marching south to join Lafayette, and word had been sent to the commander of a small French squadron at Newport to make junction with de Grasse, bringing the siege artillery necessary to the operations before Yorktown. Thus the available farces were converging on Cornwallis in superior strength, and his only route for supplies and reënforcements lay by sea. All depended on whether the British could succeed in forcing the entrance to Chesapeake Bay.

Hood, with 14 ships of the line, had followed on the trail of de Grasse, and as it happened looked into Chesapeake Bay just three days before the French admiral arrived. Finding no sign of the French, Hood sailed on to New York and joined Admiral Graves, who being senior, took command of the combined squadrons. As it was an open secret at that time that the allied operations would be directed at Cornwallis, Graves immediately sailed for the Capes, hoping on the way to intercept the Newport squadron which was known to be bound far the same destination. On reaching the Capes, September 5, he found de Grasse guarding the entrance to the bay with 24 ships of the line, the remaining four having been detailed to block the mouths of the James and York rivers. To oppose this force Graves had only 19 ships of the line, but he did not hesitate to offer battle.

In de Grasse's mind there were two things to accomplish: first, to hold the bay, and secondly, to keep the British occupied far enough at sea to allow the Newport squadron to slip in. Of course he could have made sure of both objects and a great deal more by defeating the British fleet in a decisive action, but that was not the French naval doctrine. The entrance to the Chesapeake is ten miles wide but the main channel lies between the southern promontory and a shoal called the Middle Ground three miles north of it. The British stood for the channel during the morning and the French, taking advantage of the ebbing tide at noon, cleared the bay, forming line of battle as they went. As they had to make several tacks to clear Cape Henry, the ships issued in straggling order, offering an opportunity for attack which Graves did not appreciate. Instead he went about, heading east an a course parallel to that of de Grasse, and holding the windward position. When the two lines were nearly opposite each other the British admiral ware down to attack.

BATTLE OF THE VIRGINIA CAPES, SEPT. 5, 1781
(After diagram in Mahan's Major Operations in the War of American Independence, p. 180.)

Graves's method followed the orthodox tradition exactly, and with the unvarying result. As the attacking fleet bore down in line ahead at an angle, the van of course came into action first, unsupported for some time by the rest. As the signal for close action was repeated, this angle was made sharper, and in attempting to close up the line several ships got bunched in such a way as to mask their fire. Meanwhile the rear, the seven ships under Hood, still trailing along in line ahead, never got into the action at all. Graves had signaled for "close action," but Hood chose to believe that the order for line ahead still held until the signal was repeated, whereupon he bore down. As the French turned away at the same time, to keep their distance, Hood contributed nothing to the fighting of the day. At sunset the battle ended. The British had lost 90 killed and 246 wounded; the French, a total of 200. Several of the British ships were badly damaged, one of which was in a sinking condition and had to be burned. The two fleets continued on an easterly course about three miles apart, and for five days more the two maneuvered without fighting. Graves was too much injured by the first day's encounter to attack again and de Grasse was content to let him alone. Graves still had an opportunity to cut back and enter the bay, taking a position from which it would have been hard to dislodge him and effecting the main object of the expedition by holding the mouth of the Chesapeake. But this apparently did not occur to him. De Grasse, who had imperiled Washington's campaign by cruising so far from the entrance, finally returned on the 11th, and found that the Newport squadron had arrived safely the day before. When Graves saw that the French fleet was now increased to 36 line-of-battle ships, he gave up hope of winning the bay and returned to New York, leaving Cornwallis to his fate. A little over a month later, October 19, the latter surrendered, and with his sword passed the last hope of subduing the American revolution.

This battle of the Capes, or Lynnhaven, has never until recent times been given its true historical perspective, largely because in itself it was a rather tame affair. But as the historian Reich[1] observes, "battles, like men, are important not for their dramatic splendor but for their efficiency and consequences.... The battle off Cape Henry had ultimate effects infinitely more important than Waterloo." Certainly there never was a more striking example of the "influence of sea power" on a campaign. Just at the crisis of the American Revolution the French navy, by denying to the British their communications by sea, struck the decisive blow of the war. This was the French revanche for the humiliation of 1763.

[Footnote 1: Foundations of Modern Europe, p. 24.]