The Battle of the Nile (also known as the Battle of Aboukir Bay; French: Bataille d'Aboukir) was fought between the Royal Navy and the French Navy at Aboukir Bay in Egypt between 1 and 3 August 1798. It was the climax of the Mediterranean campaign of 1798, which had started three months earlier after a large French fleet sailed from Toulon to Alexandria carrying an expeditionary force under Napoleon. A British fleet, led by Rear-Admiral of the Blue Sir Horatio Nelson, decisively defeated a French fleet under Vice-admiral François-Paul Brueys d'Aigalliers, which had escorted Napoleon's army to Egypt.

Napoleon sought to invade Egypt as the first step in a campaign against British India, as part of a greater effort to drive Britain out of the French Revolutionary Wars. As Napoleon's expeditionary force crossed the Mediterranean, it was pursued by a British fleet under Nelson who had been sent from a larger fleet in the Tagus to learn the purpose of the French expedition and to defeat it. He chased the French for more than two months, on several occasions missing them only by a matter of hours. Napoleon was aware of Nelson's pursuit and enforced absolute secrecy about his destination. He was able to capture Malta and then land in Egypt without being intercepted by the British navy.

With the French army ashore, Brueys' fleet anchored in Aboukir Bay, 20 miles (32 km) northeast of Alexandria. Brueys believed that he had established a formidable defensive position. The British fleet arrived off Egypt on 1 August and discovered Brueys' dispositions, and Nelson ordered an immediate attack. Brueys had not organized reconnaissance when he learned of the proximity of the British fleet, because the crews from scout ships were forced to work on shore to find provisions, so Nelson's attack came as a surprise to the French. Brueys also noted the poor condition of his crews and rigging. Nelson's ships advanced on the French line and split into two divisions as they approached. One cut across the head of the line and passed between the anchored French and the shore, while the other engaged the seaward side of the French fleet. Trapped in a crossfire, the leading French warships were battered into surrender during a fierce three-hour battle, although the centre of the line held out for a while until more British ships were able to join the attack. At 22:00, the French flagship Orient exploded which prompted the rear division of the French fleet to attempt to break out of the bay. With Brueys dead and his vanguard and centre defeated, only two French ships of the line and two frigates escaped from a total of 17 ships engaged.

Battle of the Nile