"The barbarian incursions of the early fifth century during the reign of the emperor Honorius, specifically the Rhine crossing of 405/406, were the immediate cause of the Roman collapse in the West. From the start of the crisis, onward, there were multiple armed, hostile barbarian nations on the move inside the empire. The political instability and declining central imperial power characteristic of the fifth century West can be attributed largely to the long-term effects of the invasion of Gaul. The invaders devastated much of the Roman provinces of Gaul, Hispania, and Africa, severely limiting Roman tax revenue. Not only was the state losing revenues: it was also suffering serious military setbacks. To meet the mounting threats, Flavius Constantius in the 420s (and Aetius after him) had to find replacements for the mobile imperial armies from the existing troops of the frontier garrisons, rather than recruiting new soldiers from the civilian population, a greatly diminished capability resulting from the devastation of the traditional recruiting regions of Pannonia and Illyria and the general apathy of the population toward military service.[iv] As the central Roman state weakened and the Germanic kingdoms inside the Empire assumed a larger role in its government, the Roman elite accommodated this new arrangement.[v] Over time, these forces compounded on each other to render the title of emperor meaningless. The natural conclusion, therefore, was the deposition of the last emperor, Romulus Augustulus in 476, and the recognition that the West needed no emperor."
https://yalehistoricalreview.ghost.io/barbarians-at-the-open-gates/
"In the winter of 405 or 406, a large-scale armed migration of Vandals, Alans, and Sueves fell upon the Rhine frontier of the Western Roman Empire and—as far as we know—encountered no resistance. The question, then, is why? Given the purported strength of the Rhine defenses and the strong tradition of Roman field armies meeting invaders in battle, the reason for the lack of resistance to and the resulting political fallout of the invasion demands an explanation."
I can think of a modern boarder that our rulers refuse to defend...History ALWAYS repeats.
"The barbarian incursions of the early fifth century during the reign of the emperor Honorius, specifically the Rhine crossing of 405/406, were the immediate cause of the Roman collapse in the West. From the start of the crisis, onward, there were multiple armed, hostile barbarian nations on the move inside the empire. The political instability and declining central imperial power characteristic of the fifth century West can be attributed largely to the long-term effects of the invasion of Gaul. The invaders devastated much of the Roman provinces of Gaul, Hispania, and Africa, severely limiting Roman tax revenue. Not only was the state losing revenues: it was also suffering serious military setbacks. To meet the mounting threats, Flavius Constantius in the 420s (and Aetius after him) had to find replacements for the mobile imperial armies from the existing troops of the frontier garrisons, rather than recruiting new soldiers from the civilian population, a greatly diminished capability resulting from the devastation of the traditional recruiting regions of Pannonia and Illyria and the general apathy of the population toward military service.[iv] As the central Roman state weakened and the Germanic kingdoms inside the Empire assumed a larger role in its government, the Roman elite accommodated this new arrangement.[v] Over time, these forces compounded on each other to render the title of emperor meaningless. The natural conclusion, therefore, was the deposition of the last emperor, Romulus Augustulus in 476, and the recognition that the West needed no emperor."
https://yalehistoricalreview.ghost.io/barbarians-a
"In the winter of 405 or 406, a large-scale armed migration of Vandals, Alans, and Sueves fell upon the Rhine frontier of the Western Roman Empire and—as far as we know—encountered no resistance. The question, then, is why? Given the purported strength of the Rhine defenses and the strong tradition of Roman field armies meeting invaders in battle, the reason for the lack of resistance to and the resulting political fallout of the invasion demands an explanation."
I can think of a modern boarder that our rulers refuse to defend...History ALWAYS repeats.