Couple of things. A) Russia has demonstrated they can’t take the poorest country in Europe in 4 years. B) it doesn’t take that much of a leap to figure that if Russia’s equipment claims are true, the smaller European militaries would be outgunned.
I think I agree but the US’ intel and air defense has helped significantly, and other countries may not have given up their planes as easily if the US wasn’t going to give them new ones