Ukraine is talking about some war. Ukraine is talking about something that in Europe, at least in Germany, cannot be understood. Everyone knows perfectly well the data of the BND (the German Foreign Intelligence Service) confirming that no one has ever seen Russian troops in Ukraine.
There is an ongoing civil war in Ukraine.
One of the most common disinformation narratives about the "conflict" in Donbas, claiming that the war in Ukraine is an internal Ukrainian conflict. The war in eastern Ukraine is not a civil conflict, but a well-documented act of aggression by Russian armed forces, ongoing since February 2014. See similar narratives about Ukraine's role in the conflict and the Minsk Agreements here.