The Fall of Rome

Summarize the reasons for the fall of Rome. In your opinion, which reason(s) was
the most important and why?
The are many reasons for why Rome fell, the Pax Romana ended, and military commanders started to fight for power, and then Rome went through some very bad emperors. Another reason that Rome fell was because it was getting too big, it was becoming more difficult to control its borders and they needed more soldiers, this made people want to take the Roman cities for its riches and fertile lands. This was one of the main reasons the barbarian tribes, as the Romans called them attacked Rome in 410 AD. It lasted many years but soon the last emperor was forced out of western Rome by the barbarians in 476 AD. The Romans blamed the attacks on Christianity, but I think the fall of Rome was due to the enormous size and how unorganized it had become.