Stephen TwiggeDr Stephen Twigge is Head of Modern Collections at The National Archives. He was previously a historian at the Foreign and Commonwealth Office and is a Fellow of the Royal Historical Society. He has published a number of books and articles on old war history including German Unification 1989-90, Berlin in the Cold War 1948-1990, British Intelligence, Avoiding Armageddon and Planning Armageddon. Read More Read Less