An order of battle for the Roman Empire, AD 30 - AD 1071

This work traces the evolution of the Roman Army from the principate through the reforms of Diocletian and Constantine, the wars of Justinian, the development of the theme system. It is divided into four books. It incoporates two fairly complete army lists, including auxiliary forces, one for the reign of Antonius Pius and the other for the reign of Valentinian III. It also includes an appendix of short histories for selected units.