5925035 A supply convoy near Lens, 1918 (b/w photo) by Unknown photographer, (20th century); National Army Museum, London; (add.info.: A supply convoy near Lens, 1918. Photograph, World War One, Western Front (1914-1918), 1918. The British and Imperial forces on the Western Front required a vast amount of ammunition, food and equipment. The Army Service Corps, assisted by thousands of Chinese, African and Arab labourers, was responsible for moving this material from the Channel ports where it was collected in base depots. From there it was moved by train to a regulating station from where it was entrained to either a railhead or advanced supply depot. At this point supplies would be moved by horse or motor transport to front line units. One of 193 British and Allied official photographs.); by National Army Museum ; out of copyright.