Fassifern accompanied his regiment on General Maitland's futile expedition to the Isle de Houat, from whence, with other regiments destined for the Mediterranean, they embarked under Lord Dalhousie's orders; and after touching at Port-Mahon in Minorca, passed on to the attack of Cadiz, which was abandoned, in consequence of a pestilence that infected the coast. The expedition then sailed for Malta; and from thence to the Bay of Marmora, on the coast of Asiatic Turkey, where Abercrombie had concentrated 15,000 men to expel the French from Egypt. He had six regiments of dragoons, and forty battalions of infantry, seven of which were foreign. Fassifern served with distinction in all the operations of the Egyptian campaign, including the landing effected under a desperate cannonade on the shore of Aboukir; the bloody contest round the Tower of Mandora, where his company occupied a conspicuous position in front of the line, as skirmishers, and where his colonel, Erskine of Cardross, received a mortal wound, and of his comrades there were 109 officers and men killed and wounded. The intrepid conduct of his regiment was particularly mentioned in the dispatches of Abercrombie, whose guard of honour was daily furnished from its ranks. Cameron was at the battle of Alexandria, where, on the 21st March, 1801, he received a wound under the left eye, and saw the brave Abercrombie receive his death shot. The troops then advanced to Rosetta; and by the time when the Gordon Highlanders entered Grand Cairo--"the Queen of Cities"--the capital of Moaz El Kehira, their shoes were completely worn away. Quarter-master Wallace was ordered to procure an immediate supply; but there was one gigantic grenadier from Speyside, for whom a suitable pair of brogues could not be found in all Grand Cairo. For his services in Egypt, Cameron received a gold medal from the Grand Seignior; and on the promotion of Major Napier to the lieutenant-colonelcy, he obtained the majority on the 5th April, 1801; and seven months afterwards, on the conclusion of that convention, by which Grand Cairo was surrendered, the Highlanders were ordered home to Scotland, and were quartered in Glasgow. About this time a dispute occurred among the officers. Some of them, who were Lowlanders, insisted that the Gaelic, which was generally spoken at the mess, should be abolished there. It was put to the vote, and by an overwhelming majority, the Celts secured its retention; but in those days, there were in the regiment twelve gentlemen of the clan Donald, all kinsmen, who invariably voted together in everything, and could carry any point they pleased. These factions were known as the national and anti-national parties.