Source for troop backup for Putin

I thought when they brought up blood supplies ok getting serious yet I kept on waiting for them to bring up reserves to pack in after ground attack I never thought of Belarus filling the gap.

but an entirely different thing for Belarus to assist militarily. Action against Ukraine would likely pull the lid of already simmering unrest within Belarus. Russian troops on Belarusian soil have given Lukashenko some breathing room and he wants that to continue, not see Russian troops leave only to have massive protests against his allowing Belarus to be used as a launchpad for aggression. Stranger things have happened, but Lukashenko is in no position to send a good chunk of his power in support of a domestically unpopular endeavor.