In May of the following year (1745) a party of Canadians and Indians, under the raider Marin, invested Annapolis. Again the Acadians refused to take up arms and again assisted the invaders with supplies. By the end of the month, however, Marin and his raiders had vanished and the garrison at Annapolis saw them no more. They had been urgently summoned by the governor of Ile Royale to come to his assistance, for Louisbourg was even then in dire peril. An army of New Englanders under Pepperrell, supported by a squadron of the British Navy under Warren, had in fact laid siege to the fortress in the same month. [Footnote: See The Great Fortress in this Series, chap. ii.] But Marin's raiders could render no effective service. On the forty-ninth day of the siege Louisbourg surrendered to the English, [Footnote: June 17, Old Style, June 28, New Style, 1745. The English at this time still used the Old Style Julian calendar, while the French used the Gregorian, New Style. Hence some of the disagreement in respect to dates which we find in the various accounts of this period.] and shortly afterwards the entire French population, civil and military, among them many Acadians, were transported to France. The fall of Louisbourg and the removal of the inhabitants alarmed the French authorities, who now entertained fears for the safety of Canada and determined to take steps for the recapture of the lost stronghold, and with it the whole of Acadia, in the following year. Accordingly, a formidable fleet, under the command of the Duc d'Anville, sailed from La Rochelle in June 1746; while the governor of Quebec sent a strong detachment of fighting Canadians under Ramesay to assist in the intended siege. But disaster after disaster overtook the fleet. A violent tempest scattered the ships in mid-ocean and an epidemic carried off hundreds of seamen and soldiers. In the autumn the commander, with a remnant of his ships, arrived in Chebucto Bay (Halifax), where he himself died. The battered ships finally put back to France, and nothing came of the enterprise. [Footnote: See The Great Fortress, chap. iii.] Meanwhile, rumours having reached Quebec of a projected invasion of Canada by New England troops, the governor Beauharnois had recalled Ramesay's Canadians for the defence of Quebec; but on hearing that the French ships had arrived in Chebucto Bay, and expecting them to attack Annapolis, Ramesay marched his forces into the heart of Acadia in order to be on hand to support the fleet. Then, when the failure of the fleet became apparent, he retired to Beaubassin at the head of Chignecto Bay, and proceeded to fortify the neck of the peninsula, building a fort at Baie Verte on the eastern shore. He was joined by a considerable band of Malecites and Micmacs under the Abbe Le Loutre; and emissaries were sent out among the Acadians as far as Minas to persuade them to take up arms on the side of the French.