The buffer zone is Ukraine territory.... Russia could buy the...

The buffer zone is Ukraine territory.... Russia could buy the zone if it could afford it. It has no right to just invade and claim which is exactly Putin's Peace plan. There is no other way to interpret, land will become part of Russia, that aint a buffer zone.

What country would allow a buffer zone to carved into them? Russia?

(the area has been flattened by Putin, so you can hardily say Putin has been protecting the Eastern Ukraine people or their lives or their property....eg Mariupol. Where is the next buffer zone to protect the new Russian land if successful... Poland. Concert massacre was an internal Russian dynamic, not to do with Ukraine. The vote is world recognized sham, post invasion, UN has voted as such, by a landslide, against any rule of law)