Rouillé, and the Half Moon Battery, neither of which was in use. Sheaffe was at York to conduct public business. He was originally scheduled to leave the settlement for Fort George but had postponed his departure due to suspicions of an American assault on York. His regulars, most of whom were also passing through York en route to other posts, consisted of two companies (including the grenadier company) of the 1st battalion 8th Regiment of Foot, a company of the Glengarry Light Infantry Fencibles, a company-sized detachment of the Royal Newfoundland Fencibles, a small squad from the 49th Regiment of Foot, and thirteen soldiers from the Royal Artillery. There were also 40 or 50 Mississaugas and Ojibwe warriors, and the Canadian militia. The American naval squadron was spotted by British sentries posted at the Scarborough Bluffs on April 26, who alerted the town and its defenders using flag signals and signal guns. The Militia was ordered to assemble, but only 300 of the 1st and 3rd Regiments of the York Militia, and the Incorporated Militia, could be mustered at short notice. Sheaffe expected the Americans to launch a two-pronged attack, with the main American landing to the west of Fort York, and another landing in Scarborough to cut off a potential retreat to Kingston. To counteract this, Sheaffe concentrated most of his regulars, the Native warriors and a small number of militiamen at Fort York, while most of the militia and the companies of the 8th Regiment of Foot positioned themselves at the town's blockhouse. Order of Battle Battle The Americans fleet appeared off of York late on April 26. Chauncey's squadron consisted of a ship-rigged corvette, a brig and twelve schooners. The embarked force commanded by Brigadier General Zebulon Pike numbered between 1,600 and 1,800, mainly from the 6th, 15th, 16th and 21st U.S. Infantry, and the 3rd U.S. Artillery fighting as infantry. Dearborn, the overall army commander, remained aboard the corvette Madison during the action. Early on April 27, the first American wave of boats, carrying 300 soldiers of Major Benjamin Forsyth's company of the U.S. 1st Rifle Regiment, landed about west of the town, supported by some of Chauncey's schooners firing grapeshot. The American force intended to land at a clear field, west of Fort York, but strong winds pushed their landing craft west of their desired landing site, towards a wooded coastline. Forsyth's riflemen were opposed