@remedialaction: Attempting to use property that is not yours is a violation, be it by seizure, trespass, violence, or the like.
is the radio spectrum property? how about the ionosphere? global fish stocks?
The oxygen in the air, water in the sea, rain from the sky? Wild animals in nature, with migration patterns that cross multiple boundaries?
How is it claimed? If part of something is disposed, do the atoms still belong to someone?