What will bring peace to Ukraine?

Through us expanding NATO this has been accelerated if unpreventable or if it was preventable we did the opposite. Both sides are dirty and both sides don't have their Nation being blown to bits. Ukraine which is a figurehead for the United States is 1 hour from Moscow the capital of Russia which Russia does validly have a concern. I think we need to stop expanding NATO and in return I think Putin will stop expanding Russia. We need peace at all cost. Politicians need to act as if they are representing the world because they are.