The Logic of Robbery" Putin

On February 21, Russian President Vladimir Putin issued an order recognizing the independence of the "Donetsk People's Republic" and the "Lugansk People's Republic," both of which are effectively controlled by pro-Russian groups in eastern Ukraine, and dispatching Russian military units to eastern Ukraine in the name of peacekeeping.
So he declared part of another country's territory to be Russia's territory.
Putin also said in his speech that "Ukraine has not only wasted everything we gave them (during the former Soviet era), but has also ruined the legacy they inherited from the Russian Empire, especially that of Yekaterina II, who annexed Ukraine.
He even brought up the history of the country to justify his claim, which can truly be called "robber's logic.
In my opinion, Putin's actions this time can be attributed to the following points.
(1) The relative weakness of the United States. The U.S. is unlikely to act (or is unable to act) on a matter of this magnitude.
(2) The Ukrainian government, which has pro-Russian factions within its borders, has failed to take a firm stance against Russia.
(3) Disorder in the NATO countries, especially in Germany. Germany's rapid decarbonization of its energy policy has forced it to rely on natural gas imports from Russia. The country has fallen into the logical contradiction of switching to renewable energy, which in turn is destroying nature.
During the Soviet era, Russians settled in the countries that were members of the Soviet Union, and if Putin's "logic" is followed this time, it will mean that Russian territory can be created within other countries at any time.
The key to the future lies in the ability of the Western nations to take concerted action to stop Putin's ambitions.

（Translated with www.DeepL.com/Translator )