I am not an expert because I visited Russia - but I have read about Russia extensively because it has such an interesting history. It started many years ago when I went and saw a movie by the name of War and Peace based on the novel written by Tolstoy. For me it created an image of a country which was mysteriously different to what I generally heard on radio or read in the press.
I also was intensely interested in the 1956 revolt in Hungary suppressed by the Russian Army and developed a hatred for communism as a result. On studying the history and especially the fall of Communism in Eastern Europe one has to go back to the sell-out of Eastern Europe to Stalin by the Allies resulting in the most oppressive regimes in modern history. I was also very interested in the fall of Communism in Eastern Europe as it is briefly reflected in the following from Wikipedia:-
"The Pan-European Picnic (German: Paneuropäisches Picknick; Hungarian: páneurópai piknik; Slovak: Paneurópsky piknik) was a peace demonstration held on the Austrian-Hungarian border near Sopron, Hungary on 19 August 1989. The opening of the border gate between Austria
and Hungary at the Pan-European Picnic turned out to be another initiative of a
widely building peaceful chain reaction, at the end of which Germany reunified, the Iron Curtain fell apart, and the Eastern Bloc disintegrated. The communist governments and the Warsaw Pact subsequently dissolved, ending the Cold War. As a result, this dissolution also led to the disintegration of the Soviet Union"
Most people think that Russia is still a communist dictatorship - which it is not. It has a Constitution that forbids dictatorial rule. Initially it banned the functioning of the Russian Communist Party - but that and was lifted by a Russian Court as being undemocratic. It was the reason why I wanted to visited Russia - how can a country that was once considered as a cosmopolitan country with a cultural history become a cruel Communist dictatorship. What I found on my visit to Russia was that Russians hated and feared the Communist regime - but they also believe that the October 1917 regime change was funded by the ultra-rich in the USA who saw it as a means of enriching themselves. Access to mineral resources was what the Rich Americans were interested in.
Do you know that to date mass graves of people murdered by the State are still being discovered all over what is today Russia. The Russians fiercely resisted the invasion by Germany in WW2 and that was nothing new - they did the same with Napoleons invasion of Russia in 1812 - which was fore-shadowing the fall of Napoleon from power. It was not the Allies that really won WW2 in Europe - it was the Russians and the Russian winter that destroyed the German ability to keep fighting longer than they actually did. The Allies made a huge historic mistake by allowing the Russian Communist Regime to conquer Eastern Europe and imposed inhuman Communist Regimes in Eastern Europe.
So what about Ukraine? In the 13th century there were no country called Ukraine in Europe. The fall of Kiev to the Mongolians let to the destruction of the Principality of Galicia. Since then the part known as Eastern Ukraine was basically ruled by the Muslim Sultanate of Crimea - a subsidiary of the Ottoman Empire and was largely de-populated with the only population being nomads constantly moving to pevent them to be sold into slavery. After the Golden Hoard collapsed in the 15th century Western Ukraine became part of the Polish Lithuanian Confederation until the 1770's. It was under Catherine the Great that what was Poland was incorporated into the Holy Roman Empire, the Kingdom of Prussia (Silesia and Eastern Prussia Konigsberg) the main part of Poland and Lithuania into Russia. Catherine the Great also destroyed the Sultanate of Crimea and introduced the usage of the name Ukraine for the new part of the Russian Empire. Her first move was to move people in the main from Russia into the de-populated area of Eastern Ukraine and both Crimea and Eastern Ukraine became totally Russified and established a number of cities in what later became part of Ukraine..
In 1917 and 1918 there was an effort to establish an independent country called Ukraine - but the effort fizzled out and the Russian Communist Regime incorporated the Western Part of Ukraine as a Republic being part of the USSR. That situation in fact was there never was an independent country called Ukraine ever in the history of Europe. The situation was also influenced by the decision of the Communist Regime to include areas never part of Ukraine since the 1770's into the Soviet Republic of Ukraine. The reason for that move was that many Ukrainians sided with the Germans in WW2 and fought against the Russians. They decided to incorporate parts of Russia into Ukraine so as to ensure that the Russians would effectively be in control of the Soviet Republic of Ukraine.
When the Soviet Union was dissolved in 1991 the Republic of Ukraine as an independent country came into being for the first time. It was decided by referendum that a democratic constitution guaranteeing the human rights of all people be guaranteed and the people in Eastern Ukraine supported the concept. The problem started in 2013 when in the last democratic election in terms of the Ukraine constitution was held and with the support of the Russian Speaking Eastern Ukraine and moderate elements in Western Ukraine a President was elected. More reactionary Ukrainians in Western Ukraine started demonstrations against the new President and the USA Government saw an opportunity to gain a vassal state in Ukraine. Ukraine by 2013 was the most corrupt country in Europe and many prominent American Politicians like Trump's initial campaign manager in 2016 - Manaford - and Clinton's Campaign Manager in 2016 Podesta were typical examples of politicians across US Party lines who co-operated to gain money from Ukraine corruption. The most prominent examples were the involvement of the Biden, Pelosi and Schiff crime families in Ukraine. Be it as it may the Obama Administration funded a coup in Ukraine in February 2014 and as per a statement by the Obama Assistant Secretary of State decided on who should be the interim President and cabinet of Ukraine - in other words a vassal state of the USA. The coup represented the destruction of the Ukraine Constitution and as a result of that the Crimea - which in terms of the 1991 Constitution had their own Parliament with a 85% Russian speaking and 10% Tartar speaking population decided to apply to become part of Russia and secede from the Ukraine - subject to a referendum on the issue. In fact the Crimea - which only became part of Ukraine in 1953 - voted by 95% to get united with Russia. A number of opinion polls conducted by USA and German Pollsters found subsequently that 96% of the Crimea population would have nothing to do with the present Ukraine at all. This type of approach was confirmed by recent interviews by NBC .
I am not supporting Putin or Russia - I support a real constitutional Ukraine with its 2015 border and guaranteeing protection of all residents in terms of a democratic constitution as provided for in the Minsk agreement - in other words an independent country of Ukraine within the 2015 borders. I do not support the present Dictatorship in Ukraine at all - a one party state that banned functioning of all opposition parties in Ukraine. Peaceful settlement is what is needed - but that is totally unacceptable to the USA.