Steven J. Zaloga received degrees in history from Union College and Columbia University. He has written several dozen books on military history and technology. He is a senior analyst with Teal Group Corp., an aerospace research firm, and serves as an adjunct staff with the Strategy, Forces, and Resources Division of the Institute for Defense Analyses.

Howard Gerrard studied at the Wallasey School of Art and has been a freelance designer and illustrator for over 20 years. He has won both the Society of British Aerospace Companies Award and the Wilkinson Sword Trophy and has illustrated a number of books for Osprey including Campaign 69: Nagashino 1575 and Campaign 72: Jutland 1916. Howard lives and works in Kent.

The Battle of the Bulge was the largest and most costly battle fought by the US Army in World War II. The Ardennes fighting was Hitler's last gamble on the Western Front, crippling the Wehrmacht for the remainder of the war. In the first of two volumes on the Ardennes campaign Steven Zaloga details the fighting in the northern sector around St Vith and the Elsenborn Ridge. Sixth Panzer Army, containing the bulk of German Panzer strength, was expected to achieve the breakthrough here. It was the failure around St Vith that forced the Germans to look south towards Bastogne.