Osprey's survey of trench warfare tactics of World War I (1914-1918). The regular armies which marched off to war in 1914 were composed of massed riflemen, screened by cavalry and supported by artillery; their leaders expected a quick and decisive outcome, achieved by sweeping manoeuvre, bold leadership and skill at arms. Eighteen months later the whole nature of field armies and their tactics had changed utterly. In sophisticated trench systems forming a battlefield a few miles wide and 400 miles long, conscript armies sheltered from massive long-range bombardment, wielding new weapons according to new tactical doctrines. This first of two richly illustrated studies explains in detail the specifics of that extraordinary transformation, complete with ten full colour plates of uniforms and equipment.

Osprey's examination of trench warfare tactics during World War I (1914-1918). The Allied attempt to break the stalemate of trench warfare by the 'big pushes' of 1916 led to massively costly battles of attrition. The Germans responded by developing schemes of defence in depth anchored on concrete bunkers; the Allies, by sophisticated artillery tactics in support of infantry assaults, and by the introduction of the tank - at first an accident-prone novelty, but later a front-breaking weapon. On both sides the small, self-reliant, opportunistic infantry unit, with its own specialist weapons, became the basic tool of attack. This second of a fascinating two-part study of the birth of 20th century tactics is illustrated in colour and includes rare photographs.