SB
There always was the Minsk agreement of 2015 allowing for the recognition of the Ukraine as a country with the borders as defined at the date of agreement - which would have allowed for the Dombas region remaining as a part of Ukraine. This agreement furthermore provided for the establishment of a federal form of Government iro the whole of Ukraine in accordance with an agreement on a new constitution to be voted on in a referendum. This agreement was signed by the Ukraine Government. the representatives of the Donbas rebels, as well as the French German and Russian Government.
The problem was that the US Government did not support the proposed agreement and under Obama started to sabotage it totally. Trump did not deal with that one believing that the Agrement would have to be implemented and Russia did nothing to attack Ukraine while he was President. Minor fighting between the Ukraine Government forces armed by the US Government and the Rebels armed by Russia was not a serious problem at the time.
When Biden took over the presidency the situation in Eastern Ukraine got more serious and a Russian attack of Ukraine became a real threat. Oppression of the 32% Russian speaking population of Ukraine became a serious problem. It started off by forbidden of people speaking Russian in public - for which they had to pay a fine. Next they forbid the usage of Russian in schools. In the weeks before the invasion the issues be came critical the Ukraine Parliament met and unanimously passed a resolution to oppose any potential attack by Russia.
In response Zelenskyy arrested the Russian speaking members of the Ukraine Parliament and banned all major political opposition parties. Macron went to Moscow and when it became clear that war was imminent if a solution was not found through the Minsk agreement.
Two weeks before the initial invasion of Ukraine the position became critical Macron went to Moscow and during discussions it was agreed that the answer would be to implement the MInsk agreement - Biden intervened and in a public speech in Ukraine and said that the aim with the expected war in Ukraine was the means the US Government would use to get rid of Putin as President of Russia. That was the end of that potential agreement.
Within a week after the invasion started a peace effort was implemented by Turkey. The Ukraine Government and Russian Government took part in the effort and the initial part of the agreement as that the Russian troops threatening Kiev would be withdrawn to give negotations a chance to succeed. So what happened next - while Russia kept to that agreement to stop the threat on Kiev - the US Government instructed the Kiev representatives to withdraw from the negotiations.
So the problem is not Putin - he was prepared to deal with the issue and recognize Ukraine as an independent Republic without NA TO being involved in Ukraine. It was the corrupt puppet President in Washington that was and is the main problem why a peaceful settlement is not possible anymore. Why would that be?
There are potentially various reasons for warmongering in the USA and prevention of peace negotiations on the issue. I am not going to deal with those now.