Final answer:
Following the Pax Romana, the century that followed saw conflicts in the transfer of power, challenges to the military, and territorial changes.
Step-by-step explanation:
Following the end of the time known as the Pax Romana, transfer of power after an emperor's death was not easy and often resulted in conflict. This was due to the lack of a clear system of succession and the presence of powerful factions within the Empire's political structure.
During this century, the Roman military did not continue to grow and conquer new territories. Instead, it faced challenges and invasions from various external forces, such as the Germanic tribes and the Sassanid Persians.
Additionally, during this period, the Roman Empire was not divided up by four leaders. Instead, it went through a series of political and territorial changes, eventually leading to the split between the Western Roman Empire and the Eastern Roman Empire.
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