The fall of Rome is still a mystery. What is written in history books is obvious bullshit. The only way to understand the truth is using logic applied to historical bits. I think the jews managed to destroy it like they tried with Egypt. The difference is that Egypt was able to react very fast and neutralize the jews, while Rome was too much confident in it's military. I see parallels between Rome and Russia. Both countries had powerful military and both were destroyed from inside.