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.
The Reform Movement (Upper Canada)
The rebellions in 1837 must be viewed in the wider context of the late-18th- and early-19th-century Atlantic revolutions. The American Revolutionary war in 1776, the French Revolution of 1789–1799, the Haitian Revolution of 1791-1804, the Irish Rebellion of 1798, and Spanish America (1810–1825) were all inspired by the same republican ideals. Even Great Britain's Chartists sought the same democratic goals. The Canadian rebels believed that the right of citizens to participate in the political process through the election of representatives was the most important right, and they sought to make the legislative council elective rather than appointed. When the British military crushed the rebellions, they ended any possibility the two Canadas would become republics.