On September 13, 1811, Lieutenant-General Sir George Prevost arrived at Quebec to take up the duties of Captain General and Governor-in-Chief of British North America. Prevost, an officer with considerable military and colonial experience, was appointed the task of readying British North America for a war with the United States.
The Prince Regent and the government gave Prevost specific guidance that limited his military and diplomatic authority. He could not undertake offensive action into the United States or declare war on his own. Most importantly, as Britain was pre-occupied with the war against Bonaparte, he could not expect any large-scale reinforcements.