Boundaries shift but that is not the point. The point is that Russia broke the the 1994 Budapest Agreement it signed with Europe and US. Why? Because their stranglehold on Ukrainian politicians had been severed by the will of the Ukrainian people, and in my book, the will of the people must needs respecting.
In this case a boundary shifted through illegal aggression by Russia, and National Geographic should stay away of legitimizing it. It is no different then the land grab in the East whcih they almost lost, and to re-enforce the lunatics who assume they are in control. Now it is a standstill.
National Geographic should worry less about losing its subscription base in Russia and stick to its reputation as a provider of authentic and honest journalism.
Russian hubris needs to get out of the past. The glory days are over. It is time to focus on world peace and less on re-securing an empire that is over with.