[1] https://www.reuters.com/world/europe/eu-close-airspace-russi...
[2] https://www.barrons.com/news/eu-countries-to-send-fighter-je...
I can't speak to the state of Russian air superiority at the moment, it could be that there are gaps/The Ukrainian air force hasn't been destroyed yet.
But even if as an idea it doesn't work out, the fact that the "peace project" organization, whose members visibly wept over the UK leaving, is coordinating the delivery of military hardware to a non-member for use in an active conflict should speak volumes about the level of support Ukraine is getting.
You're proposing military aircraft owned by an EU member state should launch from their airfields in EU, sneak over the border and land in Ukraine, refuel and (re-)arm - and perhaps get a quick paint job too and have the aviation equivalent of their serial numbers filed off - then start attacking Russian forces in Ukraine, and our plan would be basically to hope that the enemy with apparently complete air superiority plus satellite capability might not notice?
I'm firmly anti-war; that plan sounds like a great way to drag the EU and/or NATO straight into this one.
It was the EU "High Representative of the Union for Foreign Affairs and Security Policy" speaking for various EU members.
For clarity, and despite Macron's urgings, the EU doesn't yet have an air force it can send anywhere.
It does have the Common Security and Defence Policy[0]:
"The CSDP involves the deployment of military or civilian missions to preserve peace, prevent conflict and strengthen international security in accordance with the principles of the United Nations Charter. Military missions are carried out by EU forces established with secondments from the member states' armed forces"
[0] https://en.wikipedia.org/wiki/Common_Security_and_Defence_Po...