What rolevdid Rome's internal problems play in its conquest by foreign invaders?

Answer 1

When the Germanic peoples invaded the western part of the Roman Empire the Romans lost political cohesion and were unable to respond to them. There were usurpations and a lot of infighting. Facing recruitment shortages, the Roman army had come to rely on Germanic mercenaries and of Germanic allies. Lands of the empire were also taken over by the Visigoths and the Franks, two Germanic allies who had been allowed to settle in parts of the empire. There were Germanic military commanders who established puppet emperors and held the actual power. Both the Germanic allies and the invaders came to play a part in the politics of the empire, causing further fragmentation.