French brig Alerte (1787) at Venice between June and July 1797. On 1 August 1798 she was at the battle of Aboukir Bay (Battle of the Nile). Vice-Admiral François-Paul Brueys D'Aigalliers hoped to lure the British fleet onto the shoals at Aboukir Island, sending the brigs "Alerte" and "Railleur" to act as decoys in the shallow waters, but the plan failed. Then, as the British fleet approached, Brueys sent "Alerte" ahead, passing close to the leading British ships and then steering sharply to the west over the shoal in the hope that the ships of the line might follow and become grounded. None of
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