The real reason has been known for 30+ years. Large military forces especially those of NATO will not be allowed there, that is where they place deployment of the tactical nukes, see Congressional Records from late 90s. All other reasons are secondary. Without that they don't have an adequate defense on the Eastern side of the house.
As a side note the grain agreement might be falling apart.
Putin Threatens "Scam" Ukraine Grain Export Deal, Says Most Ships Diverted To EU
More stupid white nations doing stupid stuff news. Why don't they just go back to living in caves? Even the stupid swiss are going to be living like its 1980s USSR. They just need to form those single wide bread lines.
Swiss Citizens Who Overheat Their Homes This Winter Could Face Hefty Fines & 3 Years In Jail
The swiss might be able to solve their problem like California here pretty soon.
Oil & Gas Workers Association
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Imagine in 2022 people can't get heat in their homes, its like going back to 1422 or before.