Effects if splitting the Roman Empire?

Splitting the Roman empire into two parts however did not work. Rome was now easily attacked by military invaders. Rome also could not fight well. They had to hire mercenaries to fight for them. This was not the best plan because mercenaries are not always loyal to the country that they are fighting for. Rome also faced political turmoil. The government was now very oppressive which lost them the support of the Roman people. Rome also faced economic weakness, due to very high taxes. Rome also relied more heavily on slaves not the technology that they had developed and used before. The final problem that faced Rome was the social decay. Romans no longer held the key values of the Roman culture like patriotism, discipline, and devotion to duty and the upper class was too dedicated to luxury and prestige.