[ol]
They started granting citizenship to goths, huns, and other non Romans, which led to a lack of nationalism, and a lack of loyalty to Rome. Overspending, leading to excessive taxation on the poor, which led to a greater divide between rich and poor, and crushing inflation. The wealthy avoided taxes by fleeing to the countryside and setting up fiefdoms. The slaves had to compete for necessities for survival. Rome's supply of slaves and other war treasures began to dry up. Over-expansion led to overspending on the military which led to a lack of funds and resources available for citizens. Government corruption, political division, and instability. The praetorian guard (the deep state of Rome) would kill off and install emperors as they saw fit. The senate failed to stop this due to corruption within its own ranks. The senate failed to be an effective check on the emperor. Due to the incompetence of their leaders, civic pride waned. Mass immigration with non Romans eventually allowed to live in Rome. This produced an enemy within. Erosion of the traditional Roman values system. Focus shifted away from the glory of the state. Hiring of mercenaries and a decline of a strong loyal military. The rise of a Eastern Empire. Invasion by barbarian tribes. [/ol]