 Sheaffe akadzokera kuCanada achibva kuEngland muna July 1812. Mwedzi wakatevera, Hondo ya1812 yakatanga. Sir George Prevost, Gavhuna Mukuru weCanada nomukuru mukuru wemauto ikoko, akagadza Sheaffe kuti atungamirire mauto paFort George paRwizi rwaNiagara. Apo Brock akanga asipo, achibata nehondo yeAmerica paKukombwa kweDetroit, Sheaffe aidiwa naPrevost kuti ataurirane nezvokupedza hondo nemauto eAmerica aiva kune rumwe rutivi rwerwizi. Prevost angave akadavira kuti rugare rwaigona kutaurirana nokukurumidza, asi pakasvika nguva apo rugare rwakapera, vaAmerica vakanga vasimbiswa zvikuru. 