Fortress America: The Forts That Defended America, 1600 to the Present

The Secret History of the Mongol Queens: How the Daughters of Genghis Khan Rescued His Empire

The American GI in Europe in World War II The Battle in France

The Jakarta Method: Washington's Anticommunist Crusade and the Mass Murder Program that Shaped Our World

Castle to Fortress: Medieval to Post-Modern Fortifications in the Lands of the Former Roman Empire

In Search of the Dark Ages

The American GI in Europe in World War II: The March to D-Day

The Templars: The Rise and Spectacular Fall of God's Holy Warriors

Fortress Europe: From Stone to Steel Fortifications,1850–1945

The Lost City of Z: A Tale of Deadly Obsession in the Amazon

G.I. Joe in France: From Normandy to Berchtesgaden

The History of the Medieval World: From the Conversion of Constantine to the First Crusade

The Forts & Fortifications of Europe 1815-1945: The Central States: Germany, Austria-Hungry and Czechoslovakia

The Last Days Of The Incas

The Forts & Fortifications of Europe 1815- 1945: The Neutral States: The Netherlands, Belgium and Switzerland

Alive: The Story of the Andes Survivors