Lower Canada Rebellion
When news of the arrest of the Patriote leaders reached Upper Canada, William Lyon Mackenzie launched an armed rebellion in December 1837. In the meantime, filibusters from the United States, the Hunter Patriots, formed a small militia and attacked Windsor, Upper Canada, to support the Canadian Patriots. This resulted in the declaration of martial law by the Lower Canadian government.
Military history of Canada
The Upper Canada Rebellion was quickly and decisively defeated by the British forces and Canadian Militia. Attacks the next year by Hunters' Lodges, US irregulars who expected to be paid in Canadian land, were crushed in 1838 in the Battle of Pelee Island and the Battle of the Windmill. The Lower Canada Rebellion was a greater threat to the British, and the rebels were victorious at the Battle of St. Denis on November 23, 1837. Two days later, the rebels were defeated at the Battle of Saint-Charles, and on December 14, they were finally routed at the Battle of Saint-Eustache.