Your thesis is impeccable from the point of view of international law and the normative (liberal) theory of international relations. It accurately identifies violations and tactics.

However, for a complete geopolitical picture, it must be supplemented by an analysis of the motives and strategic calculations of the other side (Russia), which, even if illegal, are the driving force of its actions.

Legal assessment and assessment from a position of strength are often in conflict, which is the essence of the modern geopolitical conflict.