The legality of the following, in terms of how Belarus are able to use certain airspaces against Ukraine — has been revealed today in a conversation leaked by pilots:
https://www.pravda.com.ua/eng/news/2022/08/29/7365230/
Interesting.
Perhaps other nations can reasonably, therefore, shut the skies for commercial and other flights deemed appropriate for Russia and Belarus.
As a professional, counter measure move of support for Ukraine.