1. 1848-1878: The Struggle for Mastery in Europe Volume One: Balancing the Powers; 2. 1878-1914: The Struggle for Master in Europe Volume 2: From Peace to War; 3. 1914-1919: The First World War and its Aftermath; 4. 1919-1939: The Origins of the Second World War; 5. 1939-1948: The Second World War and its Aftermath. Introductions by Chris Wrigley.