I'm 100% on board with this.
Putting troops in Ukraine is a different matter, but incursions into NATO airspace should be met with brutally efficient response.
I was involved in military planning exercises with Brits and Americans. At the beginning of any crisis, the Brits were always looking for the legal mandate for action: what gives us the legal justification for doing this? When the UK declared a maritime exclusion zone around the Falklands, the Argentinian sent the
Belgrano across the line and then immediately retreated back outside the line, thin back in then out, etc., etc. The Brits were desperate to catch the
Belgrano inside the MEZ. Eventually, the Argentinians were dumb enough to get caught, and HMS
Conqueror sent
Belgrano to the bottom of the sea. The Americans, neither knew nor cared what international law said. If the president judged it was in the interest of the United States to do something, then that was good enough for them.
In this case, the legalities matter to Europeans. For the Poles, I don't know what is the sovereignty status of an oil platform in the Baltic beyond the 12 nautical mile territorial waters limit. For Estonia if there's a 12 minute violation of Estonian airspace by Russian fighters having the legal justification is there, I just don't know if they have the
capability. If the Russians are flying low, a shoulder fired stinger can do the job. But the Stinger gunner has got to know that the enemy aircraft is coming so we can cool the seeker head, and he needs to have approval by the head of state to shoot in such a case.