The Imperial Security State explores an important but under-explored dimension of British imperialism - its information system and the close links between military knowledge and the maintenance of empire. James Hevia's innovative study focuses on route books and military reports produced by the British Indian Army military intelligence between 1880 and 1940. He shows that together these formed a renewable and authoritative archive that was used to train intelligence officers, to inform civilian policy makers and to provide vital information to commanders as they approached the battlefield....