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 month and presented Troubridge with a French merchant ship that was anchored in the harbour. With their first definite sighting of the French, the British fleet turned southwards towards Alexandria. On 1 August, Nelson's fleet reached the Egyptian coast, the ships HMS "Swiftsure" and HMS "Alexander" detached as scouts to investigate Alexandria harbour. Although the transport fleet was observed in the harbour, the French battle fleet was not. Despite initial disappointment, Nelson ordered his ships to search the coastline, and at 14:00 lookouts on HMS "Zealous" reported the French anchored in line of battle in Aboukir Bay. Brueys believed that