Why did the (Western) Roman Empire Fall?

Previous empires, such as Babylon, Medo-Persia and Greece were conquered by the armies of the next ‘world’ empire, but the mighty Roman Empire declined and fell over a period of hundreds of years.  Historians are therefore very interested in the causes of its decline. 


The historian Edward Gibbon, in his 1776 book The History of the Decline and Fall of the Roman Empire, was the first to do in-depth research on this subject.  The purpose of this article is to reflect on the causes of the Fall.  Much of this section is a summary of the Wikipedia article, Historiography of the fall of the Western Roman Empire.  References are omitted from this section but can be found in that and related articles.

This article follows on from the previous article; Decline and Fall of the Western Roman Empire, which summarizes the events of the Fall.  The current article provides an understanding of the underlying currents that gave rise to the major events described in the previous article.


Underfunding of the army may have contributed greatly to the Fall.  The rich aristocrats of Rome sought protection within the strong walls of the city of Rome. In theory, they supported the armed forces but did not wish to pay for it.

For example, Stilicho, like all other generals, was desperately short of recruits and supplies.  Though devoted to the Roman Empire, he was very active in confiscating assets, for the administrative machine was not producing enough support for the army (Wikipedia).


The rich aristocrats did, however, pass large amounts of money to the Christian Church. Edward Gibbon attributed a significant role to Christianity in the fall of the Western Roman Empire.  He remarked that “the soldiers’ pay was lavished on the useless multitudes … who could only plead the merits of abstinence and chastity.”


Edward Gibbon placed the blame on the empire itself, for it gradually entrusted the role of defending the Empire to barbarian mercenaries who eventually turned on them. 


The historian Arther Ferrill, in The Fall of the Roman Empire: The Military Explanation, has also suggested that the Roman Empire declined largely as a result of an influx of Germanic mercenaries into the ranks of the legions. They were more loyal to their Germanic commanders than to the Roman government. He added that the chief cause of the agricultural decline was high taxation which drove it out of business. This taxation was spurred by the huge military budget and was thus ‘indirectly’ the result of the barbarian invasions.


JB Bury held that a number of crises, that arose simultaneously, was the cause of the fall: Due to the depopulation of the empire, it had come to depend on the enrollment of barbarians in the army.  It was furthermore necessary to pay them well as a consequence of the decline in military spirit.


Some historians argue that the Roman Empire itself was a rotten system from its inception. In their view, the Empire had a plunder economy based on looting existing resources rather than producing anything new. It relied on riches from conquered territories, but this source of revenue dried up with the end of Roman territorial expansion in the second century.  Meanwhile, the costs of military defense and the pomp of Emperors and the wealthy aristocrats continued. Therefore, the Empire looted its own people through exorbitant taxation, from which the élite was exempted.  This taxation drove small-scale farmers out of business, and into dependency upon the élite.


In The Complete Roman Army (2003) Adrian Goldsworthy, a British military historian, identified weakening central authority, resulting in endless civil wars between factions of the Roman Army fighting for control of the Empire, as the main cause of the collapse of the Roman Empire.  These civil wars weakened the army, making it less able to defend itself against its enemies.


According to Peter Heather, in his The Fall of the Roman Empire (2005), the Fall was caused by a series of sequential events:

First was the emergence of the Sassanid Persian Empire (also known as the Empire of Iranians or Neo-Persian Empire) in the east. They were powerful enough to push the Romans back. Many modern readers tend to think of the “Huns” as the nemesis of the Roman Empire, but it was the Persians who held the attention and concern of the Emperors. 

To cope with the Sassanid threat, the Roman Empire stripped the Western Roman Empire of resources, weakening it.

At the same time, Hunnic incursions in Germania forced peoples on the Empire’s borders to migrate elsewhere. Due to the weakened military capacity of the Western Roman Empire, the Germanic peoples were able to force their way into the Empire.


This article will not select from these causes, for the interest of this website is not primary WHY the Empire fell, but HOW it fell, namely that the empire did not really fell, but continued.  The goal of these articles is to show that the prophecies of Daniel accurately predicted HOW the Roman Empire will fall.


Christology of the persecuted church (First 300 years)
 – Introduction
 – Polycarp
 – Justin Martyr
 – Ignatius of Antioch
 – Irenaeus
 – Tertullian – work in progress

 – Origen – work in progress
 – The ancients referred to Jesus as our god.
Fourth Century (State Church)
 – Council of Nicaea – A.D. 325 
 – The Nicene Creed Interpreted 
 – Fourth Century Arian Period 

 – What did Arians believe in the fourth century?
 – Long Lines Creed – one of the creeds during the Arian period
 – Death of Arianism – Emperor Theodosius
Fifth Century
 – Fall of the Western Roman Empire;
 – Why the Roman Empire fell;

 – Roman Church grew in strength (also overview of the previous articles)
 – The Fall of Rome proves Daniel as a true prophecy.

Sixth Century
 Justinian and the Byzantine Papacy destroyed Arianism.
Middle Ages

 – The massacres of the Waldensians