In 1916, Britain was finally forced to introduce universal conscription to replace the terrible casualties suffered by the pre-war Regulars, the Territorials and the eager but unprepared volunteers of the 'New Armies'.In 1917 and 1918, the vastly expanded British Expeditionary Force became the most effective of all the combatant armies in France, its improved weapons and tactics forged in the furnaces of the Somme and the Ypres Salient. Shaken but resilient under Germany's last desperate offensive in spring 1918, it swept forward to final victory.This second of three titles charts its changing appearance in colourful detail.