Western European feudalism did what?

I am not 100% sure what are wanting to know... so I threw down a summary that should be able to help!

Explanation:

Feudalism was the system in European medieval societies of the 10th to 13th centuries CE whereby a social hierarchy was established based on local administrative control and the distribution of land into units (fiefs)

Feudalism helped protect communities from the violence and warfare that broke out after the fall of Rome and the collapse of strong central government in Western Europe. Feudalism secured Western Europe's society and kept out powerful invaders. Feudalism helped restore trade. Lords repaired bridges and roads.

answer; taking up arms to defend the nation;