By default, from now on Russia just retains the (formerly) Ukrainian lands it controls and integrates them in Russia. There's no deadline to that process, even if Russia stops gaining any land at all while still having to lose some number of people on the front line, basically indefinitely.
I can see that assertion in the Western media that Ukraine has an option to "not agree" to unfavorable terms, such as the ones voiced by Putin. The underlying assumption is that Putin has to disengage eventually, so the Ukraine can just wait it out. But unless some miracle saves the day for Ukraine, Russia is not getting out of these lands at all. After all, Russia is busy paving roads and issuing Russian citizenship in these areas.
Save Putin from what?
By default, from now on Russia just retains the (formerly) Ukrainian lands it controls and integrates them in Russia. There's no deadline to that process, even if Russia stops gaining any land at all while still having to lose some number of people on the front line, basically indefinitely.
I can see that assertion in the Western media that Ukraine has an option to "not agree" to unfavorable terms, such as the ones voiced by Putin. The underlying assumption is that Putin has to disengage eventually, so the Ukraine can just wait it out. But unless some miracle saves the day for Ukraine, Russia is not getting out of these lands at all. After all, Russia is busy paving roads and issuing Russian citizenship in these areas.