Why did you include OpenStreetMap in your list? OpenStreetMap already allows for disputed borders (and there are a lot of those). If you look at the border of R

Why did you include OpenStreetMap in your list? OpenStreetMap already allows for disputed borders (and there are a lot of those). If you look at the border of Russia, you'll note that Crimea is included: https://www.openstreetmap.org/relation/60189 https://www.openstreetmap.org/relation/60189 And the border of Ukraine includes Crimea too: https://www.openstreetmap.org/relation/60199 https://www.openstreetmap.org/relation/60199 This is pretty much the current state of affairs as far as surveyable boundaries go. Russia has a de facto claim on Crimea by brute presence, Ukraine by international recognition. When that changes, OpenStreetMap will reflect the new boundaries correctly. Donbas and Luhansk are contested, obviously, but also lack a clearly defined border for Russia's claim, unlike Crimea. It is an active theatre of war, so any mapping of boundaries outside of Ukraine's original borders is out of scope for OpenStreetMap.