[Petrosius]

That map does not reflect the ethic division of Ukraine. Only Crimea has an ethnic Russian majority. And while around 70% of Donbas is Russian speaking, less than 40% are ethnic Russians. Do not confuse, as many have, language with ethnic identity. A majority of the Irish are English speakers, but do not call them English.

For what it is worth, here is a map of the linguistic division of Ukraine:

But keep in mind that even in Russian language areas, other than Crimea, the majority of the population still considers themselves Ukrainian, not Russian.

[Travis McGee]

The blue-yellow map was not a linguistic map, but an electoral map.