During the Great War , the 15th Battalion , CEF , was authorized on 1 September 1914 .
During the Great War , the 15th Battalion , CEF , was embarked for Britain on 26 September 1914 and arrived in France on 15 February 1915 .
During the Great War , the 15th Battalion , CEF , was authorized on 1 September 1914 and embarked for Britain on 26 September 1914 and arrived in France on 15 February 1915 .