This makes the most sense out of any of the explanations. Russia already assured that Ukraine would not be in NATO in 2014; that's why I thought no invasion would happen- Russia's main worry had been averted by "gifting" Ukraine a permanent territorial dispute. But like you said, if the above gas discoveries were real and going to be developed, that put Russia on a serious timetable for its invasion, and explains all the ludicrous propaganda like the NATO stuff. NATO was never going to attack Russia directly; Russia has first and second strike nuclear deterrents, plus a well-known "dead hand" retaliatory system set up.
Actually things about reality how strong in europe is opoosition against Ukraine in EU or NATO....
Were well known already in 2008 th......
& There damn a lot reasons and countries opposing to this ...
& For multiple reasons....
Kremlin knew this pretty well.
If even I then knew this and majority of ppl I knew then....despite we then had little time to read articles about politic stuff.
/ there even before 2008 th were a lot of reaons WHY...
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IMHO Kremlin did this 2022 th war cos assumed that with help from traitors and saboteurs & diversants and provocators....they easily will submit Ukraine quickly ....
Government will flee to foreign countries.
Disstatisfied with russia ppl will quickly relocate to West.
Puppet in Kiev installed...
Then easy to deNazify Moldova....
+++ with all Ukraine in Kremlin's hands they had even more huge impact in world's food export market and ofc had more tools to blackmail West even more than today....
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Like this...