As the Niagara district was chosen by the Fenians to be the theatre of their first operations, Gen. Napier quickly made preparations to occupy the salient points of this important territory. The Welland Canal, connecting Lake Erie with Lake Ontario, runs from Port Colborne on the former lake to Port Dalhousie on the latter (a distance of 26 miles), and lies at an average distance of about 13 miles inland from the Niagara River. The Welland Railway also connected these two points, running nearly parallel with the canal. To protect these two arteries of commerce from destruction was a desideratum to the General commanding, and his plan of campaign was framed on these lines. Port Colborne lies about 19 miles west of Fort Erie, and Gen. Napier decided to mobilize a force at that point and another at St. Catharines, 10 miles west of the Niagara River. These were two very strategic points at which to concentrate troops for the defence of the Niagara frontier, as they possessed excellent advantages as bases of supply for the sustenance of columns operating in any quarter of the district. On account of the favorable rail communication with each of those places, troops could be moved rapidly by trains from the interior, and would always be within easy striking distance of an invading force on any portion of the Niagara frontier. Therefore orders were issued to commanding officers to assemble their corps immediately at their respective local headquarters, and await further instructions. The first body of troops which left for the front was the Queen's Own Rifles, of Toronto, with a total strength of 480 of all ranks. The regiment was assembled at the Drill Shed on Front Street at 4 o'clock on the morning of June 1st, and received orders to proceed to Port Colborne without delay. At 6.30 a.m. they embarked on board the steamer "City of Toronto" for Port Dalhousie, where they entrained on the Welland Railway for Port Colborne. Lieut.-Col. J. S. Dennis, Brigade Major of the Fifth Military District, was in command. This officer had received orders from Gen. Napier to occupy Port Colborne, and if necessary entrench a position there and await reinforcements and further orders before an attack was made on the enemy. The Queen's Own arrived at Port Colborne about noon, and there being no indications of the enemy in the near vicinity, the men were billetted among the citizens for dinner, as by somebody's oversight no rations or food supply of any kind had been forwarded for the sustenance of the troops.