Jonathan was educated at Clifton College and after a successful business career became a full-time author. He is a member of the British Commission for Military History and Honorary Research Fellow in War Studies at the University of Birmingham. He is also a member of The Haig Fellowship and Society of Authors. He has written and contributed to ten books and lectures widely on aspects of 20th Century conflict. Jonathan has appeared in a number of television and radio documentaries, and has recently featured in BBC’s Portillo’s State Secrets, Heroes of War and The Last Battle of the British Empire. He was historical advisor for the 6-part major drama, The Last Post, which aired on prime-time BBC1 and Amazon/Netflix. As critic, he was also recently one of the judges for the British Television Documentary Awards.