Property rights still apply in space: Any vehicle you launch is yours and you can be held accountable for damage you do to somebody else's vehicle. Proving that somebody killed your satellite on purpose should be pretty difficult though.
I don't think it works like that. If one of Elon's Satellites get hit (intentionally or not) by a Russian/Chinese missile/satellite... I don't think SpaceX has any realistic way to enforce rights.
But I don't see why they would wanna do that. I don't know how these things works but it seems like there's enough space in space for all the satellites SpaceX would wanna launch.
You're talking about a company that makes tricked out ICBMs. I suspect that SpaceX could handle a tit-for-tat exchange with any space power. The only real limit would be budgetary, but I'm pretty sure the U.S. government could find a way to funnel funds. Of course, none if this would ever happen in the real world, I just wanted to point out that SpaceX is making some if the bigger rockets flying today, and they far from helpless.
Is that really how it works in practice? There's no legal system with any real international jurisdiction. I'd have thought if state actors were going to be "held accountable" it would be done diplomatically, and that non-state actors would be held to account by the states in which they reside.
100km is the altitude where lies the Karman Line[0]; the boundary between the Earth's atmosphere and outer space. So technically, space IS what's above 100km ;)
who do you go to war with if the satellites are owned by a corporation? their home country? I am more sure that the home country would regulate such a company to prevent them from putting satellites where others don't want them
Nations have no jurisdiction over outer space. Hence no nation can prohibit an orbit over its landmass. However the definition of where space begins is not precisely defined [1].
It's like international waters beyond 20NM.
No you can't shoot. Shooting is an act of war, just like sinking a ship in the mid atlantic.