Going to be interesting times for the UK since many (perhaps most?) of Russia's modern airline fleet are ultimately under the legal auspices of UK Parliamentarians via the ICAO 83 bis arrangements for Bermuda and UK overseas territory aviation legislation. I thought they may have taken some action in Parliament during the Skripal poisonings but they didn't; not even against selected oligarch's aircraft. Mind you they may have had to compensate Bermuda in some form - too late now as it has got away from them