system
Given the following post, respond as if you're commenting on Reddit:
human
[TES: Skyrim] Does Skyrim belong to the Nords?
gpt
The Nords hold a strong claim to Skyrim, being a people that successfully conquered and continue to inhabit the land.  However, they were (in turn) conquered by the Imperium, which currently holds the strongest claim to the territory by right of conquest.

This leaves the Nord with a casus belli to press their claim... but they have to win that war to claim Skyrim as solely their's.