ANDREW MACDONALD is a New Zealand-born author and military historian living in London. He holds a PhD (University of London) in military history, which he completed while working as a Reuters correspondent; his thesis was on the assessment of military effectiveness in World War I. He now works full time as a writer, and has been published twice by HarperCollins: On My Way to the Somme: New Zealanders and the Bloody Offensive of 1916 and Passchendaele: The Anatomy of a Tragedy were both released to critical acclaim.