The 2nd Battalion (Eastern Ontario Regiment), Canadian Expeditionary Force was an infantry battalion of the Canadian Army created in response to outbreak of the First World War in August 1914. The battalion comprised local militia in many regions of Ontario (and even from Quebec City). Men came from as far away as Sault Ste. Marie to join in Canada's military endeavour. Local militia gathered at Valcartier, in August 1914 and became part of the 2nd Battalion.