I haven't read anything about Polish fighter jets. https://www.flightradar24.com/blog/a-look-at-some-military-activity-in-airspace-around-ukraine/ https://www.

I haven't read anything about Polish fighter jets. https://www.flightradar24.com/blog/a-look-at-some-military-activity-in-airspace-around-ukraine/ https://www.flightradar24.com/blog/a-look-at-some-military-a... suggests that an airport in Poland is being used as hub for deliveries from other countries to Ukraine.