RuZZia knows how to annoy people.
That may be argued against in council as an Art. 5 & 6 event, but it obliges a response that reminds Vlad of the consequences of his actions. It would justify positioning with Ukraine consent or request air defence within Ukraine of NATO to defend all weapons fired into Ukraine from Russian forces as they are apparently incompetent. That should be, to include all criminally held lands that Russia occupies in Eastern Ukraine in contravention of UN resolutions.
Will NATO go further than that? for an action that has the hall marks of being due to Russian incompetence?
Poland has the right to respond as they see fit as a UN member, under the charter, Russia killing Polish people is not unforeseeable as a result of Vlads ego trip through Ukraine. Never dull.