Meanwhile on the frontier of Lower Canada the British were everywhere successful. On June 3 two American sloops attacked the British garrison of Isle-aux-noix at the north end of Lake Champlain. Both ships were compelled to surrender. On August 1 a British force raided Plattsburg and destroyed the barracks and military stores. A combined movement on Montreal was now made by the forces of the United States; it was mainly owing to the loyalty of the French Canadians that they were repulsed. General Hampton advancing from the south with a force 7,000 strong was defeated at the river Chateauguay on October 26, by 900 men belonging to the Canadian militia, commanded by Colonel McDonnell and Colonel de Salaberry. The defeated general withdrew his troops into winter quarters at Plattsburg. Not long after, on December 7, the American general Wilkinson who had sailed down the St. Lawrence to Prescott and was marching towards Cornwall, was defeated with heavy loss by Colonel Morrison at Chrystler's Farm, and made no further attempt on Canada. In the same month General McClure, who commanded at Fort George, retired to the eastern bank of the Niagara before Colonel Murray's advance. His retreat was disgraced by the burning of the town of Newark, where women and children were turned homeless into the cold of a Canadian winter. At the same time the American forces were withdrawn from south-western Canada but still retained Amherstburg at the head of Lake Erie, the sole conquest of the campaign. [Pageheading: _NAVAL WARFARE._]