Russia has been losing a lot of high value equipment as well. The A-50s being taken out is a huge deal, not just for the Ukrainian front, but for Russia's overall defense on all borders. There's also the half dozen jets shot down a few weeks ago. As well as Ukraine continuing to take out Russian anti air. Nobody's saying much but it really feels like Ukraine is gearing up for a big push by plowing the road right now... Logistically it would be risky. We'll see...