Action of 31 March 1800 fleet anchored in Aboukir Bay to support the troops ashore and was surprised and almost completely destroyed on 1 August by a British fleet under Rear-Admiral Sir Horatio Nelson. Only two ships of the line and two frigates escaped the Battle of the Nile from the 17 French ships that participated in the action. Of the survivors, the ship of the line "Généreux" sailed for Corfu while "Guillaume Tell", under Contre-amiral Pierre-Charles Villeneuve, reached Malta with the two frigates. When Villeneuve arrived at Malta in September 1798, the island was already in turmoil: the dissolution of the Roman Catholic Church
Atlantic campaign of 1806 sailed from Cadiz and was intercepted by Nelson, resulting in the Battle of Trafalgar. Although Nelson was killed at the height of the battle, his squadron inflicted a devastating defeat on the combined fleet, capturing or destroying 17 French or Spanish ships, including Villeneuve's flagship. The battered remnants of the French Mediterranean and Spanish Atlantic fleets retreated to Cadiz, although four French ships fled north and were intercepted and captured at the Battle of Cape Ortegal two weeks later. In total, the campaign cost Napoleon 13 French and 12 Spanish ships, eliminating any possibility of even regional superiority at sea