it's all up to the west, ukraine need a guarantee that we wouldn't start a new war after a couple of years and the only safe bet for what is joining nato. if that happens then they are probably will be ok with territorial looses. but ukraine in nato is also one of the main points of this war, it would be considered as a failure that the end result was even wider borderline with the enemy. as i read trump is going to offer and cease fire and delay ukraine's mbershio in nato for 10 years, which is basically nothing. both sides would spend their time preparing for a second war.
Russian Federation