Duty Calls: Dunkirk

James Holland is an award-winning historian, writer, and broadcaster. The author of a number of best-selling histories including Battle of Britain, Dam Busters, and most recently, The War in the West, he has also written nine works of historical fiction, including the Jack Tanner novels. He has presented - and written - a large number of television programmes and series, and is also Co-founder of the Chalke Valley History Festival. He can be found on Twitter as @James1940.