The total loss of the English army and fleet, during the siege amounted to five hundred and twenty-five. Besides Captain Baillie and Lieutenant Cuthbert the Highlanders lost Lieutenant J. Alexander Fraser and James Murray, killed; Captain Donald MacDonald, Lieutenant Alexander Campbell (Barcaldine) and John MacDonald, wounded; and sixty-seven rank and file killed and wounded. The third expedition was against Fort du Quesne, undertaken by Brigadier General John Forbes. Although the point of attack was less formidable and the enemy inferior in numbers to those at either Ticonderoga or Louisburg, yet the difficulties were greater, owing to the great extent of country to be traversed, through woods without roads, over mountains and through almost impassable morasses. The army consisted of six thousand two hundred and thirty-eight men, composed of Montgomery's Highlanders, twelve hundred and eighty-four strong, five hundred and fifty-five of the Royal Americans, and four thousand four hundred provincials. Among the latter were the two Virginia regiments, nineteen hundred strong, under the command of Washington. Yet vast as were the preparations of the army, Forbes never would have seen the Ohio had it not been for the genius of Washington, although then but twenty-six years of age. The army took up its line of march from Philadelphia in July, and did not reach Raystown until the month of September, when they were still ninety miles distant from Fort du Quesne. It was Washington's earnest advice that the army should advance with celerity along Braddock's road; but other advice prevailed, and the army commemorated its march by moving slowly and constructing a new route to the Ohio. Thus the summer was frittered away. While Washington's forces joined the main army, Boquet was detached with two thousand men to take post at Loyal Hanna, fifty miles in advance. Here intelligence was received that the French garrison consisted of but eight hundred men, of whom three hundred were Indians. The vainglory of Boquet, without the consent or knowledge of his superior officer urged him to send forward a party of four hundred Highlanders and a company of Virginians, under Major James Grant to reconnoitre. Major Grant divided his troops, and when near the fort, advanced with pipes playing and drums beating, as if he was on a visit to a friendly town. The enemy did not wait to be attacked, but instantly marched out of their works and invited the conflict. The Highlanders threw off their coats and charged sword in hand. At first the French gave way, but rallied and surrounded the detachment on all sides. Being concealed in the thick foliage, their heavy and destructive fire could not be returned with any effect. Major Grant was taken in an attempt to force into the woods, where he observed the thickest of the fire. On losing their commander, and so many officers killed and wounded, the Highlanders dispersed, and were only saved from utter ruin by the provincials.