Russia and Ukraine

[Thumpalumpacus]

Is can at least be in principle by objective,  Ought can ever be more than subjective at best and worse then worthless when impracticable or manifestly self defeating in practice.    Your ought is not someone else’s ought.   Ought does not excuse, change or mitigate the material consequence of its pursuit.

Might-makes-right isn't a good recipe for international relations.