The first work to lay out Roman strategic thinking from its start under Augustus until its final demise in 476 CEFrom Octavian's victory at Actium (31 bc) to its traditional endpoint in the West (476), the Roman Empire lasted a solid 500 yearsDLan impressive number by any standard, and fully one-fifth of all recorded history. In fact, the decline and final collapse of the Roman Empire took longer than most other empires even existed. Any historian trying to unearth the grand strategy of the Roman Empire must, therefore, always remain cognizant of the time scale, in which she is dealing....