> No where other than this conversation have I ever seen someone claim that going to someone else's land and taking doing what I want is sovereignty.

I've seen it elsewhere on this site (I think from rayiner?).

It's plausible that it's actually used that way in some contexts (legal, maybe?), but I agree that's not what most people think of. The whole concept of "violation of sovereignty" would seem to rely on there being some limits to what countries can do to each other. If it's simply a matter of "what a country has the power to do" - otherwise sovereignty could not be violated, only demonstrated lacking.