My guess is that the MiGs to Ukraine is a three part problem.and the car tyres/tires with arrows that remain inflated.
The US refusal early on to give Poland new aircraft in exchange for MiGs to Ukraine has bugged me from day one.
Now I suspect that the US may have been worried that Russia would steamroll Ukraine, as was predicted, and, if the MiG deal went through, go straight on into Poland while Poland had no fighter aircraft for defense. Conversion training from the MiG to an American type would take months at best but the trainees could still return home and fly MiG's if the Russians attacked.
Hopefully there are now lots of Poles in the US quietly getting training and some of the MiG's have been "hijacked" to Ukraine. Maybe it is time for some Polish, and other, tank crews to "steal" some tanks and join the Ukrainian army in the east.
First, the Polish MiGs could easily end up war casualties in short order. Basically wasted.
Second, who pays for the Polish MiGs? They may have a few upgrades, but are a VERY INEXPENSIVE aircraft. Trade one for one for F-16s, again who pays for them.
Lastly, if they did get handed over to the UAF, the country which allowed them to launch (to land in Ukraine) could easily be considered an Ally and end up being drawn into the conflict.
Personally, I would like to see them get more arms, but not sure if diplomatically or via military maneuver handing them over is the right answer.
The after action report should include questions such as: How could this conflict have been avoided?
And having a US president say it's okay to "invade a little" is not a good answer.