Answer:
Civilization declined as its desire to conquer more territory.
Explanation:
Roman Civilization declined for many reasons, but one of the reasons included territorial expansion. A territorial extension had driven by a hunger for power and riches for centuries, where leaders have used their authority to overtake an existing society and turn it into new. The conquer of more territories had led the Romans to divide its power and military to secure these regions. All of these began to weaken the central.