Invasion literature (also the invasion novel) is a literary genre that was popular in the period between 1871 and the First World War (1914–1918). The invasion novel first was recognized as a literary genre in the UK, with the novella The Battle of Dorking: Reminiscences of a Volunteer (1871), an account of a German invasion of England, which, in the Western world, aroused the national imaginations and anxieties about hypothetical invasions by foreign powers; by 1914 the genre of invasion literature comprised more than 400 novels and stories. The genre was influential in Britain in shaping politics, national policies, and popular perceptions in the years leading up to the First World War, and remains a part of popular culture to this day. Several of the books were written by or ghostwritten for military officers and experts of the day who believed that the nation would be saved if the particular tactic that they favoured was or would be adopted. Pre-"Dorking" Nearly a century before the invasion literature genre became a true popular phenomenon after the publication of The Battle of Dorking in 1871, a mini-boom of invasion stories appeared soon after the French developed the hot-air balloon. Poems and plays that centred on armies of balloons invading England could be found in France, and even America. However, it was not until the Prussians used advanced technologies such as breech-loading artillery and railroads to defeat the French in the Franco-Prussian War in 1871 that the fear of invasion by a technologically superior enemy became more realistic. In Europe One of those stories is a history of the sudden and terrible invasion of England by the French, in the month of May, 1852, According to I.F. Clarke: Many feared that military weakness at home would invite attack from abroad; and for the rest of the century not a decade passed without an alarm of some kind about the dangers pressing upon the nation. After the coup d’état by Louis Napoleon, for instance, there were general fears that the French might attempt an invasion. In order to demonstrate the defenceless condition of the country an anonymous author wrote A History of the sudden and terrible invasion of England by the French … in May 1852 ( London, 1851). This was the first complete imaginary war of the future to be written in English, and it anticipated Chesney’s technique of giving a detailed account