Defender of Canada: Sir George Prevost and the War of 1812 Volume 40 - Paperbackby Tanya Grodzinski (Author), Donald E. Graves (Foreword by) When war broke out between Great Britain and the United States in 1812, Sir George Prevost, captain general and governor in chief of British North America, was responsible for defending a group of North American colonies that stretched as far as the distance from Paris to Moscow. He also commanded one of the largest British overseas forces during the Napoleonic Wars. Defender of Canada, the