It is called negotiating a peace agreement—something adults used to know how to do.
Nowadays the West just calls people names and howls at the moon.
Ukraine had a negotiated agreement with Russian in 1994 in which Russia promised to protect Ukraine’s borders.
That was broken in 2014.
Then they broke it again.
Putin signified what he wanted when he sent paratroopers and an armoured column to capture Kyiv.
If you give him territory in Donbas today, then in a few years he will come back for more.
This is no difference than the munich conference — or do you think giving Nazi Germany the Sudentenland really stopped World war II?
If anything, it made it worse.