Is Byden Caving in to Pruton's Demands?

Ambassador teff says president byden is not caving in to pruton's demands. He was trying to both reassert America's long standing position vizve ukraine and also european security, ambassador tells medea. How do you deal with keeping ukraine a sovereign, independent nation when russia basically wants to undercut its very sovereignty? Ambassador: "This is one of the great conundrums that we've had to face over the years"