Robert Forczyk has a PhD in International Relations and National Security from the University of Maryland and a strong background in European and Asian military history. He retired as a lieutenant colonel from the US Army Reserves having served 18 years as an armour officer in the US 2nd and 4th infantry divisions and as an intelligence officer in the 29th Infantry Division (Light). Dr Forczyk is currently a consultant in Washington, DC.

Adam Hook studied graphic design, and began his work as an illustrator in 1983. He specializes in detailed historical reconstructions, and has illustrated Osprey titles on subjects as diverse as the Aztecs, the Ancient Greeks, Roman battle tactics, several 19th-century American subjects, the modern Chinese Army, and a number of books in the Fortress series.

His work features in exhibitions and publications throughout the world. He lives in East Sussex, UK.