It only takes one or two slow-wits to ruin a bushel.
Here is why Vlad is taking Ukraine, in bulleted points so I can avoid a long discussion:
- NATO is poking the Bear, and the Bear doesn't like being poked
- Novorossiya - Ukraine and Russia have a history together that is none of our business
- Ukraine is the "Breadbasket of Europe". Control the food and you control much, much more - and if you are Russia and you don't control the breadbasket in Ukraine, you have hungry Russians....
- Black Sea - The Kremlin refuses to be shut out of the Black Sea for serious military reasons
We could add "World Domination" to the list, but that would just be silly, overly-simplistic nonsense for an old spy pulp. Heh...
Here's PJB on the matter.