The tactics of the Huns, Mongols, Arabs, and Cossacks.

Chariot armies, Alexander the Great, and the rise of the armored knight.

The role of horses in the American Civil War, World War II (including the Red Army), and unconventional warfare like the Boer War.

DiMarco, a retired U.S. Army Lieutenant Colonel, uses his military background to analyze the horse not just as a mount, but as a critical "weapons system". The book is structured chronologically, covering: