2 books in series

Barbarossa Derailed

Barbarossa Derailed is a 2-book series with 2 primary works first released in 2010 with contributions by David M. Glantz.

Barbarossa Derailed: The Battle for Smolensk 10 July-10 September 1941: Volume 2 - The German Offensives On The Flanks And The Third Soviet Counteroffensive, 25 August-10 September 1941
Barbarossa Derailed