At 9.30am on 21 March 1918, the last great battle of the First World War commenced when three German armies struck a massive blow against the weak divisions of the British Third and Fifth Armies. It was the first day of what the Germans called the Kaiserschlacht ('the Kaiser's Battle'), the series of attacks that were intended to break the deadlock on the Western Front, knock the British Army out of the war, and finally bring victory to Germany. In the event the cost of the gamble was so heavy that once the assault faltered, it remained for the Allies to push the exhausted German armies back and the War was at last over. Critics accounts: The clever blending of written and oral accounts from some 650 surviving British and German soldiers makes the book an extremely convincing reconstruction. SUNDAY TIMES AUTHOR: Martin Middlebrook is one of the leading historians on The Great War. His books include The First Day on the Somme and Your Country Needs You. Other works include The Peenemunde Raid and Task Force : The Falklands War. He lives in Lincolnshire.