I'm always skeptical of people suggesting scenarios where someone gives up control of nukes to a third party, as the Bush administration suggested (without a shred of evidence as it turned out) about Saddam Hussein. All the control is lost while all the liability, along with the return address, remains with the giver.
I'm similarly skeptical about any serious involvement of Belarus in the conflict, though I'm sure Putin is leaning on them to at least feint at what amounts to opening a second front. Lukashenko's hold on power impresses me as much more tenuous than Putin's. I like the idea of the possibility of the Ukrainians meeting the Belarussian conscripts at the border, as Edward Abbey once suggested about one of our neighbors "...with a good rifle and a case of ammunition and sending them home..." to solve the real problem themselves.

