Croisière de Bruix Earl St. Vincent to dispatch a fleet of his own under Rear-Admiral Sir Horatio Nelson. Nelson tracked the French across the Mediterranean but was unable to discover the invasion fleet until after the troops were ashore. On 1 August 1798 Nelson attacked the French fleet anchored in Aboukir Bay near Alexandria. The ensuing Battle of the Nile was a crushing victory for Nelson: eleven of the 13 French ships of the line were captured or destroyed and Napoleon's army was trapped in Egypt. The destruction of the French fleet encouraged the allies to form a new coalition against the French
Mediterranean campaign of 1798 Citoyenne" finally caught up with the fleet, followed on 17 August by "Seahorse" and "Terpsichore". "Mutine" was detached on 13 August with despatches for the Admiralty and on 14 August Nelson sent seven ships with the six seaworthy prizes to the mouth of Aboukir Bay under the command of Saumarez. This convoy sailed for Gibraltar on 15 August and the following day Nelson burnt "Heureux", followed on 18 August by "Mercure" and "Guerrier", none of which were fit for continued service. On 19 August Nelson separated his remaining ships, leading three vessels northwards towards Naples and leaving a blockade squadron