Christopher Clark. The Sleepwalkers: How Europe Went to War in 1914. London: Allen Lane, 2012. Who doesn't need another book on the origins of the First World War? Not me! This particular one focuses on the Balkan quagmire and its role in Great Power politics. Unlike some other recent interpretations (such as William Mulligan's), Clark emphasises European instability, though appears to fall short of claiming that war was inevitable. Nor, per the title, was it intended: it was essentially a terrible accident.