ARMENTIERES, a town of France, department of Nord, on the Lys, 13m. W.N.W. of Lille by rail. Pop. Before its complete destruction (1914-1918) it was important for spinning and weaving of flax and cotton, bleaching, dyeing and the manufacture of machinery. Its association with textiles goes hack to the woollen industry of the middle ages. Two miles behind the British lines during most of the war (1914-18), it was lost in the German advance of April 1918. It rapidly recovered from the wartime devastations. There is a board of trade arbi trators and a chamber of commerce.