At the start of the war there were no trench maps--trench warfare did not develop until late 1914, and the British army did not possess in the Summer of 1914 the logistical and technical support that making trench maps would have required. The British Army went to war with maps more suited to a "war of movement", i.e. small scale maps, of a scale just about adequate for marching. Once the line had become static after the Battle of the Aisne and the Race for the Sea, the need for accurate, detailed maps of the new trench networks became urgent.