Andrew Lambert is Laughton Professor of Naval History at King’s College London. His books include Nelson: Britannia’s God of War, Admirals: The Naval Commanders Who Made Britain Great, Franklin: Tragic Hero of Polar Navigation, The Challenge: Britain Against America in the Naval War of 1812, for which he was awarded the Anderson Medal, and The Crimean War: British Grand Strategy Against Russia 1853-1856. His highly successful history of the Royal Navy, War at Sea, was broadcast on BBC Two.