How about the opposite of a Liberation, a Lock?
This automatically sets a barrier, where nobody can get in, until repealed.
This resolution mostly can be used for when the region has lost a founder, or is being threatened with raids, but it can also be used to stop nations entering a bad region for example.
E.g. Lock Example Region. proposed by Honeydewistan.
Noting Example Region was once one of the largest defender regions.... (insert good stuff about region)
Acknowledging Example Region has lost its founder, Examplia, a few weeks ago, and are being threatened by raids from The Random Raiders.
Believing that imposing barriers is the only way to protect the region, and preserve its diverse culture etc.
Hereby locks Example Region.
Or, Alternatively,
Lock The Random Raiders, Proposed by Honeydewistan
Noting the Random Raiders are one of the most notorious invader regions in the game etc. (insert stuff bad about region)
Acknowledging that the Random Raiders also have accumulated to over 300 nations, making it one of the largest regions this esteemed body had ever seen.
Observing that with imposed barriers, the random raiders can no longer recruit nations into their region, possibly slowing activity and resulting in the Random Raiders stopping their military actions.
hereby locks the Random Raiders.
So, what do you guys think?