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.
Upper Canada
The Canadian Alliance Society was reborn as the Constitutional Reform Society (1836), when it was led by the more moderate reformer, Dr William W. Baldwin. After the disastrous 1836 elections, it took the final form as the Toronto Political Union in 1837. It was the Toronto Political Union that called for a Constitutional Convention in July 1837, and began organising local "Vigilance Committees" to elect delegates. This became the organizational structure for the Rebellion of 1837.