Send the Mig 29's and see if there is a reaction, push Putin like he is bullying the West.
Calling for a no fly zone over humanitarian routes will push the envelope as well
For only the last couple of days suppose to warm up on the weekend again
They are having better success in the South because the fields are starting to firm up
I don't know what NATO is waiting for it's spring break in Ukraine perfect time to stop Russia in Ukraine before the article 5 moment, come in under humanitarian reasons