SHORT:
Ukrainian President Volodymyr Zelensky has said that Russia might use small nuclear weapons, which worries many people around the world.
In return, Russia’s Foreign Minister Sergey Lavrov called Zelensky’s warning untrue and said it was just to make him look bad.
This back-and-forth shows how the tension between Ukraine and Russia is growing, and it could affect how countries get along and the safety everyone. The whole world is watching this situation very carefully.
