Despite what the Kremlin may tell you by appeasing to facist fears, the primary reason they started pushing to re-incorporate Ukraine was natural gas deposits that were found prior to the Crimea invasion in 2014.
https://en.wikipedia.org/wiki/Natural_gas_in_Ukraine
If you're talking about military action, whether it is Pentagon or Kremlin, it's always about the energy. The rest is just rhetoric.
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Despite what the Kremlin may tell you by appeasing to facist fears, the primary reason they started pushing to re-incorporate Ukraine was natural gas deposits that were found prior to the Crimea invasion in 2014.
https://en.wikipedia.org/wiki/Natural_gas_in_Ukraine
If you're talking about military action, whether it is Pentagon or Kremlin, it's always about the energy. The rest is just rhetoric.