The documentation of military history begins with the confrontation between Sumer (current Iraq) and Elam (current Iran) c. 2700 BC near the modern Basra, and includes such enduring records as the Hebrew Bible.
The records of the Roman Julius Caesar (100 BC - 44 BC) enable a comparative approach for campaigns such as Commentarii de Bello Gallico and Commentarii de Bello Civili.