Why did it become important for people to find protection after the fall of the carolingian empire?

The Empire under Charlemagne

Charlemagne's reign was very significant in the history of the Carolingian Empire. He was the first Frankish king who united most of the territories of Western Europe into a single entity, something which hadn't been accomplished since the fall of the Roman Empire.

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Janicey

the answer is a glaciers carved a large valley that later flooded and became puget sound

the answer is use of support