Odesa is historically Novorossia. Kharkiv and Donbas are the territories of the Donetsk-Kryvyi Rih Republic, which grandfather Lenin attached to Ukraine in 1918. These seams, which were used to patch Ukraine together into a “Great Ukraine,” can both sew together and tear apart. Therefore, they are natural dividing lines.
In terms of Donbas, Warsaw continues to use military rhetoric introduced by the former Ukrainian President Petro Poroshenko. The official Polish documents and statements speak about “Russian aggression”, but this point of view is not shared by most European countries.
One of the most common disinformation narratives about the military conflict in Donbas, promoting the message that Russia has nothing to do with the war in Ukraine and that the international community does not accuse Russia of any aggression against Ukraine.
There is irrefutable evidence of direct Russian military involvement in Eastern Ukraine. The EU has condemned the clear violation of Ukrainian sovereignty and territorial integrity by acts of aggression by the Russian armed forces since February 2014. In addition, Russian President Vladimir Putin admitted in 2015 Russia's military presence in Ukraine.
See similar cases connected to the War in Donbas: Germany, France and Ukraine admitted that they need a war in Donbas, Russia isn’t and wasn’t involved in the Donbas conflict and Moscow did not interfere in the armed conflict in Donbas.