I believe in maps showing who holds what territory. As it stands now, Ukraine has regained territory lost(with substantial American hardware) and Russia isn’t the cold war juggernaut we thought it was and has a hard time beating a barely second world nation.
Putin maybe fighting with one hand tied behind his back but Mother Russia has a lot of territory to defend from hungry neighbors (cough,cough China) and cannot afford to go “whole hog” into Ukraine.
Beyond that, is anyone’s guess.