In light of recent conflicts I would imagine troops on either side of the Russian/Ukrainian border will be looking for any help they can get, and very keen to learn any new skills.
What would be interesting to know (but I have no need to know) are exactly what weapons each side will be able to bring to the fight, if any fighting ever happens.
Back in the day things like Russian ZSU batteries were very much effective platforms, but the recent Armenian/Azerbaijan conflict saw fairly cheap UAVs to take out ZSUs with no trouble at all, as well as other anti air systems.
I have to admit to having some questions in my mind about recent events, but none of them are suitable for asking on a public forum.