The 10th Battalion, Canadian Expeditionary Force was a Canadian field force unit created during the First World War. Technically distinct from the Militia from which its soldiers were drawn the unit served in the Canadian Expeditionary Force (CEF), specifically in the 1st Canadian Division from 1914 to 1919. It later was perpetuated by both The Calgary Highlanders and The Winnipeg Light Infantry. The battalion participated in every major Canadian battle of the First World War, and set a record for the most decorations earned by a Canadian unit in a single battle at Hill 70. The unit was known to its contemporaries simply as The Fighting Tenth.