Up to the time of the arrival of the XVIIIth there had not been much fighting, for the French were engaged in mounting guns, and were not yet in strength to attempt a _coup-de-main_. When the Royal Irish landed they were marched up to the front, but were engaged in no affair of importance until the 30th of November, when they took part in a sortie against a large battery placed by Napoleon himself on the Aresnes heights, from which one of our principal works was commanded. The assaulting column, formed of 400 British, 300 Piedmontese, 600 Neapolitans, 600 Spaniards, and 400 French Royalists, was commanded by General O’Hara, one of the staff at Gibraltar, who had landed at Toulon with the XVIIIth. The instructions he issued were explicit. When the troops reached the plain at the foot of the heights, the column was to break into four detachments, the British on the left, and on reaching the summit they were to capture the battery, occupy the heights, and then stand fast; on no account whatever were they to follow the enemy in pursuit. After making their way, first through a belt of olive-trees intersected by stone walls, and then up a steep mountain cut into terraces of vineyards, the Allies gained the crest, surprised the French, and drove them headlong out of the battery. Had they remembered their orders the success would have been complete, for the guns could have been rolled down the height and carried back to Toulon; but unfortunately the men got out of hand, and dashed madly after the retreating French down a valley and up a hill on the other side, scattering in all directions as they pursued their flying foes. They had lost all vestige of cohesion when they were charged by formed bodies of the enemy, whose counter-stroke changed our victory into a defeat. General O’Hara was wounded and captured; and of the four hundred British engaged, twelve officers and about two hundred other ranks were killed, wounded, or taken prisoner. The survivors fell back to the battery and attempted to hold it, but being unsupported by their Continental comrades had finally to retreat into Toulon, though not before they had spiked six guns.