Since the Minsk II Accord was declared a failure in early 2022 there have been several failed peace negotiations between Ukraine and Russia. Here.
The three most common problems of failed negotiations are according to my netsearch: “mismanagement of expectations; unwillingness to empathize: and lack of preparation”. Here
Who would have the best expertise to perform a successful peace negotiation between Ukraine and Russia? Would it be the UN, the Red Cross, the Vatican, Switzerland, US, China, or a conglomerate of some of these? Or something completely different? And why would that be so?