Cap Badge - Canadian Army Service Corps (CASC) When war broke out in August 1914, the Canadian Permanent Army Service Corps (CPASC) and CASC had about 3,000 members. By 1918, this had increased to over 17,000. The first contingent of the Canadian Expeditionary Force (CEF) concentrated at Camp Valcartier and sailed for England in October 1914. Renamed the 1st Canadian Division, they went to France in February 1915. The CASC elements of a Division consisted of a Train (HT), a Supply Column (MT), an Ammunition Sub-Park (MT) and a Reserve Park (HT). There were also Lines of Communications troops, such as Depot Units of Supply, Field Bakeries and Field Butcheries. Corps Troops were formed in September 1915 when the 2nd Canadian Division arrived and the Canadian Corps was formed. The 3rd and 4th Divisions arrived in France in 1916. There were Base Troops and Training Depots in the UK. Other CASC units were the Canadian Section of the 5th Cavalry Division Supply Column (to which the Canadian cavalry was attached), CE MT Companies, CMMG MT Companies and ambulance drivers. The increased use of MT led to the development of mobile workshops and of Breakdown Vehicles, a CASC innovation. Besides the UK, France and Flanders, CASC units served in the Far East as part of the Canadian Siberian Expeditionary Force based in Vladovostok. At home, they continued to support the home defense units and new battalions of the CEF that were continually being raised to provide reinforcements. By 1918, the CASC was supporting 400,000 men, 150,000 French civilians and 25,000 horses in the European Theatre. Recognition of the Corp's outstanding work during the war came in November 1919 when His Majesty, King George V, awarded the designation "ROYAL" to the CPASC.