HMS Vanguard (1787) to Sicily via Asia Minor. Convinced that the French were going to Egypt he set sail once more for Alexandria. On the evening of 1 August 1798, half an hour before sunset, the Battle of the Nile began when Nelson attacked the French fleet which was moored in a strong line of battle in Aboukir Bay with gunboats, four frigates, and batteries on Aboukir Island to protect their flanks. was the leading ship and, followed by four others, she broke through the French line to anchor and fight from the shoreward side. "Vanguard" remained on the seaward side and soon
Sir Thomas Thompson, 1st Baronet to allow them to withdraw. Thompson himself was wounded in the battle. Thompson was later given command of a squadron, and carried out cruises in the Mediterranean, intercepting French and Spanish ships. He returned to Gibraltar, but was ordered to sea again in June 1798 to reinforce Nelson's squadron in their hunt for the French fleet that had earlier escaped from Toulon. He was with Nelson when they located the French fleet, under the command of Vice-Admiral Brueys, moored in Aboukir Bay. In the ensuing engagement Thompson came to the assistance of , which had run aground on shoals in