Fall of roman empire

The roman empire fell because of two main reasons, its incapability to deal with the problem of middle east and with the Germanic tribes. As rome had become bigger and badder, many others wanted to emulate it, but deem down all wished for its downfall. For there was nothing to admire about its empire. And even the citizens of the roman empire were not nationalistic any more. After the great rulers had left, the bureaucracy had become more bloated and corrupt. Rulers like Augustus determined that the problem of the middle east (the Iranian empire) and that of the Germanic tribes is best dealt with by limiting our empire. And even though this was a free market economy, the hostilities between the superpowers kept rising and eventually it came to a boiling point. War erupted and the superpowers went to war. The roman empire eventually won many of the middle eastern territories but it had expanded itself too much. And over the century or two, the Iranian empire politically came in the hands of new people, who felt that it was in the will of God that they had risen to power, and that they are now going to fight against the roman empire. And they did, and it was this new empire that had been plagued by various diseases and loss of nationalistic spirit and bloated bureaucracy that lost against the Iranians.