Record Data Place Unit Type City or Town Containing Unit Canada West (Ontario) Events Date Type 06/02/1866 In southern Ontario, Fenian invaders push back Canadian militia at the Battle of Ridgway Battles/Soldiers 06/03/1866 On the Niagara River, U.S. naval units arrest Fenian invaders as they retreat back into the United States US/the World People Documents Images Waterloo, near Fort Erie, Ontario, June 1866, artist's impression, zoomable image