★★★★★ The Test of Battle and Further Development of Doctrine. The Anglo-French Entente spring offensive of 1917 began with a serious German defeat at Arras, but that was its high point. Subsequent British and French tactical gains and captures of men and matériel bore no relationship to the plans for a breakthrough, the hopes of... Continua a leggere →

★★★★★ The crisis of the battle of the Somme forced the German army to introduce new tactics.[1] By the start of the battle, German defensive methods had moved away from the pre-war system of establishing and holding one strong line. Doctrine issued in October 1915 called for the construction of at least two positions, far... Continua a leggere →