The Russians are prepared and China probably put a pretty penny into the hat as well.
This video shows maps, before/after, and a simulator tour of bases, S400 (450) missile sites, radar, Suwalki Gap and more. You will never see this on the news or elsewhere.
Scroll in about a minute and a half to pick up the sound and your good.
https://www.youtube.com/live/vJwvvJkisQQ?si=-Nb7rEDKJP7Vvn6Y