> Which isn't to say that they would operate those systems (or starlink) in peacetime without the approval of the host country

To the original point, Starlink wouldn't be claiming that "Starlink is now on all seven continents" unless somebody (e.g. the USAF) was at least conducting connectivity tests in these countries, if not putting Starlink into active use — which would, again, be much to the chagrin of local RF engineers, who had.