Russia enraged by US permission to use weapons in Ukraine, what will happen next?

The war between Russia and Ukraine has reached a point where the danger of a world war is clearly visible. On the one hand, there is the danger of a world war and, on the other hand, even if a world war does not break out, there is still the danger of an atomic bomb or a nuclear bomb attack. Because the United States. The actions taken by the United States in the last two or three days have angered Putin.