Scarce had the tidings of his lordship's departure reached Canada, when the active Montcalm again took the field, to follow up the successes of the preceding year. Fort William Henry, which Sir Wm. Johnson had erected on the southern shore of Lake George, was now his object; it commanded the lake, and was an important protection to the British frontier. A brave old officer, Colonel Monro, with about five hundred men, formed the garrison; more than three times that number of militia were intrenched near by. Montcalm had, early in the season, made three ineffectual attempts upon the fort; he now trusted to be more successful. Collecting his forces from Crown Point, Ticonderoga, and the adjacent posts, with a considerable number of Canadians and Indians, altogether nearly eight thousand men, he advanced up the lake, on the 1st of August, in a fleet of boats, with swarms of Indian canoes in the advance. The fort came near being surprised; but the troops encamped without it, abandoned their tents and hurried within the works. A summons to surrender was answered by a brave defiance. Montcalm invested the fort, made his approaches, and battered it with his artillery. For five days its veteran commander kept up a vigorous defence, trusting to receive assistance from General Webb, who had failed to relieve Fort Oswego in the preceding year, and who was now at Fort Edward, about fifteen miles distant, with upwards of five thousand men. Instead of this, Webb, who overrated the French forces, sent him a letter, advising him to capitulate. The letter was intercepted by Montcalm, but still forwarded to Monro. The obstinate old soldier, however, persisted in his defence, until most of his cannon were burst, and his ammunition expended. At length, in the month of August, he hung out a flag of truce, and obtained honorable terms from an enemy who knew how to appreciate his valor. Montcalm demolished the fort, carried off all the artillery and munitions of war, with vessels employed in the navigation of the lake; and having thus completed his destruction of the British defences on this frontier, returned once more in triumph with the spoils of victory, to hang up fresh trophies in the churches of Canada. Lord Loudoun, in the mean time, formed his junction with Admiral Holbourne at Halifax, and the troops were embarked with all diligence on board of the transports. Unfortunately, the French were again too quick for them. Admiral de Bois de la Mothe had arrived at Louisburg, with a large naval and land force; it was ascertained that he had seventeen ships of the line, and three frigates, quietly moored in the harbor; that the place was well fortified and supplied with provisions and ammunition, and garrisoned with six thousand regular troops; three thousand natives, and thirteen hundred Indians.