The First Contingent of the Canadian Expeditionary Force was raised in August 1914, shortly after the outbreak of World War I, concentrated at Valcartier Camp in Quebec, and set off for England in the largest trans-Atlantic convoy to date two months later. Training and reorganization commenced upon arrival in the United Kingdom in October 1914, and it was not until 26 January 1915 that the division was officially organized, under the command of Lieutenant-General Edwin Alderson, a British Army officer. Several units under command of the First Contingent were excluded from the divisional organization, including the 17th Battalion (Nova Scotia Highlanders), 18th Battalion, and several companies of Newfoundland soldiers (later formed into the Newfoundland Regiment and assigned to the British 29th Division).