According to you Arab majority Azerbaidzhan is in Europe, while Ukraine and Russia are non-European nations?
All above mentioned countries, states and territories (some of which are ommited because of insufficient tax information which I haven't got at the time I was writing that text) have some form of EU, EU-related, or other superstate and international integrations related to Europe - membership, meaning that to some extent their own monetary and fiscal policy is not drafted solely by their governments sovereign right, but are also influenced by EU-goverment and Council of Europe and other bodies.
Ukraine and Russia are not part of those integrations except separate NATO alliance forums with each specific country (Ukraine and Russia respectively). Another thing is that Russia is super-continental giant not mainly in Europe, but in Asia too, and if Russia would be included in this brief TAX overview, so I would have to include approx at at least 100 other nations governments...
Positions of current ukrainian government toward their currency, taxes, future fiscal measures and bitcoin issues are also due to known issues - a shaky ground since this might change any day, and russian taxes, for most readers of this thread, which are, I presume, from Italy, would be out of the scope of this topic.
However it was not intended to offend anybody from Ukraine nor Russia (by unintentionally stipulating they are not in Europe, which they are), just that since this was Italian issue, and Italy being a EU member country, the aim was to corelate italian taxes with the rest of Europe, mostly with EU-member territories.