War Horse started as a project by two horsemen to uncover the relationship between pedigree and confirmation, especially pertaining to soundness and athleticism. It became an immense tome on the short lived but massively influential U.S. Army Remount Service breeding program. Livingston and Roberts, in their search to quantify the pedigrees of the best horses, discovered that they unerringly traced to Remount stallions, regardless of breed. While the majority of remount stallions were Thoroughbreds, Arabians, or Morgans, they had a lasting effect on nearly every American breed.
The authors begin, unsurprisingly, with a brief overview of warhorse history. This chapter is far more thorough than average, including both pre-Medieval and non-European sections. However, it is in places problematic, including references to a cumbersome great horse and suggesting that the Roman Empire employed war chariots in a widespread fashion. However, these are issues within the historiography they were relying on, and do not reflect the overall quality of the book. They then move quickly through the early years of the Remount services during the Civil War, not yet involved in breeding, through the massive equine casualties (riding, draft, and pack horses and mules) in several wars up through World War I. The overall scarcity of horsepower following World War I, coupled with the need for consistent quality, led to the establishment of the breeding program the Remount is now known for.
The bulk of the book is concerned with the day to day running of the Remount breeding program, from stallion selection and placement to enlistment of Remount offspring. The book benefits from a large number of photos and excerpted letters and documents from breeders as well as Army personnel. The final chapter includes detailed pedigrees and accounts of the most influential Remount stallions. This section is largely concerned with the stockhorses- mostly Quarter Horses and Paints- the authors original sought to analyze, though other breeds are represented in the body of the work. At the end are several useful appendices, including a timeline and a list of known Remount personal and stallions. In all, War Horse tends towards the romantic but is nonetheless of incredible use to historians of modern cavalry or American breeding practices.