Slovakia will stop sending power to Ukraine. This will happen if Russian oil does not flow again by Monday. The oil comes through a big pipe called the Druzhba pipeline.
Slovakia has trouble getting energy. It thinks Ukraine stopped the oil. This can make things bad between them. It can also hurt energy for all of Europe.
The oil stopped in January. Ukraine said a drone hit its pipes. The Druzhba pipe is important for Slovakia and Hungary. They get oil from Russia using it.
Slovak leader Robert Fico is angry. He said Ukraine's stop is bad. He also does not like that Ukraine stopped Russian gas. Slovakia will lose money because of this.
Slovakia sending less power will hurt Ukraine. Slovakia gave Ukraine much of its power last month. Ukraine's power system is already weak. Losing power will be hard for Ukraine.
This problem also affects Hungary. Hungary also uses the Druzhba pipe. Hungary did not want to give Ukraine money. This shows that energy and politics are still connected. We will see what happens next.