It was very common for those on the American frontier to defend themselves. I think that is a reasonable precedent. Some of the only laws I would pass on an is

It was very common for those on the American frontier to defend themselves. I think that is a reasonable precedent. Some of the only laws I would pass on an island would be outlawing violence and establishing mechanisms to enforce this, especially from outside attacks. There are certainly private forces that could get the job done, and I can even imagine a libertarian society decreeing that the government must contract out to multiple competing parties to enforce the laws. The note about MAD is interesting because it is so easy to destroy a village size seastead.