Being reported here on evening news that said missile may possibly be aimed at Guam... not sure of accuracy of sources.
Trump is due to call Turnbull tomorrow morning.
Pine Gap will be essential in providing SIGINT I would imagine.
I reckon if they fired it at Guam, the US would try to shoot it down, while simultaneously striking the launch site.
MOAB? Possibly. But wouldn't this be a cruise missile conflict in early stages?
Update - for Northern hemisphere friends who may just be waking up - Putin issues a statement saying sanctions have been exhausted.