Big organization like NATO has to provide solution to the conflicts since they claimed to be a peaceful bloc. But from what we could see is that they offer non, for them its all about control which we can see thru the sanctions and regime change.
In this conflict, only Russia seem to be open to negotiation. They even warn that Ukraine's NATO entry will result to war but they still pushes it.
Now that each party have been gathering allies already, its becoming harder to prevent.
"NATO was constructed on the - with the reason, whether one believes it or not, that it was going to defend Western Europe from Russian assault. Once the Berlin Wall fell and the Soviet Union was beginning to collapse, that reason was gone. So, first question: why does NATO exist?" - Noam Chomsky
The answer is extremely simple - in the world, in addition to the collapsed rotten Soviet Union, there are still many idiots who dream of world domination, "everyone into nuclear ashes" and periodically rattling their aggressive "bells".
The only thing I will note is that a series of changes in the structures of world interaction awaits us. NATO will also be changed, which for a very long time emphasized its essence as almost only a fight against the Kremlin, and will become an alliance that ensures stability in all regions.
So are other international organizations that today have shown themselves to be impotent, absolutely useless, creating only the appearance of work, or not fulfilling their duties at all - the UN, the Red Cross and many others.