Army Council (1904) practice, however, a huge amount of influence was retained by the exceedingly conservative C-in-C Field Marshal Prince George, 2nd Duke of Cambridge, who held the post between 1856–1895. His resistance to reform caused military efficiency to lag well behind Britain's rivals, a problem which became painfully obvious during the Second Boer War. The situation was only remedied in 1904 when the post of Commander-in-Chief was abolished and replaced with that of the Chief of the General Staff. An Army Council was created along similar lines to the Board of Admiralty, chaired by the Secretary of State for War, and an
Tanks in the British Army such as the British A9 Cruiser Mk I slowly became less common. British tanks armament and use in the battles also had to change as German Blitzkrieg tactics and doctrine shifted towards faster medium and heavy tanks fighting large multi-tank battles, with the role of the infantry tank in assaults taken by simpler self-propelled artillery. In British practice, the main armament of the infantry tank went in three phases. The pre-Dunkirk British Army Matilda I had only a single machine gun, a compromise forced by the low cost to which they had been built. The Matilda II gained a capable