""This is the story of a war within a war-of a struggle smothered away from the light of day, a long-drawn-out and ruthless campaign of brain versus brain. And the word that governs it all is ""Intelligence,"" the process by which one person, or State, extracts information from a second, against the latter's will."" This book is part of the World War One Centenary series; creating, collating and reprinting new and old works of poetry, fiction, autobiography and analysis. The series forms a commemorative tribute to mark the passing of one of the world's bloodiest wars, offering new perspectives on this tragic yet fascinating period of human history. Each publication also includes brand new introductory essays and a timeline to help the reader place the work in its historical context.