At the outbreak of the War of 1812, flank companies (limited to three officers and 38 men), of the five regiments took the field in all major engagements from Niagara to Detroit including the Battles of Queenston Heights, Lundy's Lane, Stoney Creek and Fort Detroit. The flank companies took the field together with Militias raised by various former officers including Colonel Isaac Swayze and did most of the militia's fighting. In all cases they were a credit to their country.