[Demidog]

However, if our government chooses to act in retaliation, it would be justified as defensive application of force on behalf of its citizens.

No it would not be justified as our jurisdiction does not extend beyond our borders. What you are suggesting is justified is absolutely not libertarian.

[annalex]

If my rights are violated I can justifiably retaliate across the national border if necessary. If you accept that premise, then you should admit that I can also commission my goverment to do the retaliating for me. Rights of self defense have nothing to do with national jurisdiction, -- unless you think that the right of self defense is also government-given.

I suggest we drop the naturalness of land ownership topic as unrelated to the thread.