Robin Cross specializes in military history. He has written over 30 books, including The Battle of Kursk and VE Day. He has contributed to over 150 television documentaries.
David Willey is the curator of The Tank Museum in Dorset. He has contributed to many Haynes manuals on tanks.
The Tank Museum holds the biggest and best collection of tanks and military vehicles from around the world. The land owned by the MoD and the museum is used as part of tank-crew training. The museum has strong links with the hugely successful World of Tanks game.