The French minister to the United States, M. Genêt, had written home that he would forward a part of the convoy, under the care of two small ships of war, as soon as possible. With the idea that these might have sailed before Van Stabel reached America, a force of five ships-of-the-line with some lighter vessels was directed to protect their arrival. This squadron accordingly sailed from Brest under the command of Rear-Admiral Nielly, on the 10th of April.[77] It had been preceded by a light division, whose mission was to meet the convoy and inform the officer in charge that Nielly would await him a hundred leagues west of Belle-Isle.
Later news corrected the expectations based upon Genêt's first despatches, and as the close approach of summer made it more easy for the British fleet to maintain its position in the Bay of Biscay, and consequently increased the dangers through which the convoy must pass, the French government determined to send out all the available ships in Brest. On the 16th of May the great fleet, comprising twenty-five ships-of-the-line, one of which carried one hundred and twenty guns and three others one hundred and ten, sailed under the command of Rear-Admiral Villaret Joyeuse. A representative of the National Convention, charged with duties resembling those of the representatives present with the armies in the field, embarked on board the flag-ship, "La Montagne." This magnificent vessel, called under the monarchy the "États de Bourgogne," now bore the name of the terrible party dominant in the National Convention. These were still the days of the Terror, and Robespierre had yet two months to live when the fleet sailed from Brest. The admiral's orders were to cruise in the same station that had already been assigned to Nielly, with whom he was expected to form a junction, and to protect the approach of the convoy at all hazards, but not to fight unless essential to secure that end, to which all other objects were subordinated. The time of waiting was to be utilized for fleet manœuvres, in which the representative and admiral had too much reason to fear that the captains were unskilled.
The anxiety of the French government about the convoy, and the embarrassment which would be caused by its loss, were obvious incentives to the British authorities to do all in their power to intercept it. The Channel fleet, so called from the ports upon which its operations were based, had returned from its cruises of the previous year in December, and had since then remained at anchor, repairing and refitting for the next year's work. Its commander, Lord Howe, as has before been said,[78] was averse from keeping the sea in winter with the heavy ships. According to his system of warfare, the fleet should be anchored at some convenient point on the Channel coast, and depend upon frigates stationed before the French ports to bring it word of the enemy's movements. Had, however, the expected convoy in 1794 sailed from America as soon as it was expected to do, it would have reached its own ports before the British had left their anchors.