Sweden has formally joined NATO as the 32nd member of the transatlantic military alliance, ending decades of post-World War II neutrality and centuries of broader non-alignment.
Good. Sweden has very strong military capabilities with their Total Defense strategy. They also have very advanced weapons development and a huge defense industry, including their Gripen fighter jets. NATO got a lot stronger today.
Not Post WWII, it's Post Napoleon neutrality, the 6th coalition was the last hurrah of Swedish involvement in continental affairs, and thus the beginning of their extended neutrality in such affairs.
So -- pure curiosity... Which countries could yet still potentially join NATO.
Switzerland doesn't join anything ever, so it's the dark horse. But since everything is done by referendum there, it could change on a dime if the public demanded it.
Austria literally has it in their constitution that they aren't allowed -- but in theory they could change their constitution (unlikely).
Moldova has the whole Transnistria incentive -- but NATO would be shy about that one, because that could potentially immediately put them in hot conflict. However, suppose they backdoored their way in by creating a union with Romania (not impossible, but complicated).
Ireland has been neutral forever -- but the public support for Ukraine is extremely high. So they might even be possible. Higher than Switzerland anyway ;)
Bosnia and Herzegovina is sort of a special case where they're sort of partially engaged already.
Serbia is extremely unlikely while they continue to be extremely contemptuous of everyone. That's fine. Although Kosovo is sort of under NATO protection.
In theory, Georgia or Armenia would be candidates, but Turkey would pooh-pooh Armenia right away, and Georgia has contested territory.
In order of odds, I wager: Ireland, Moldova (via Romania), Georgia+Ukraine (in that order chronologically).
it's amazing the chain of effect that happened when putin got so bold that he got orban to not only side with ukraine but also drop opposition to finland joining nato which caused sweden to join
Technically it's not "post-WWII neutrality", since this specific neutrality began when Sweden declared its neutrality in September 1939, which isn't after WWII, but pre/during.