[quote=@zombieaccount]
If these communes are unstable enough they generate piracy, wouldn't they also be unstable enough to try to spread revolution to neighboring countries making north finland a serious security threat for the Swedish kingdom*?[/quote]

Not really.

They are on their own in Western Russia and too busy trying to survive (these guys have so little horse-drawn carriages are a big thing there still). They are not in any position to try and spread their ideology, nor would it be beneficial for them to do so. Quite the opposite. If the Communes started to try and spread their ideology, it would start raising flags with nations like Spain and, being isolated, the likelihood that they would have support from China in a confrontation is very small and not worth the risk. The spread of their ideology itself is not worth it. They are probably content with doing their own thing, surviving and staying hunkered down until they can gain more support from the east.

They don't pose a threat, anyway. Like I said, they are barely getting by and the worst Sweden would get from them is pirates trying to smuggle things. Even antagonistic groups within the Communes would be so weak that the threat they pose to surrounding nations probably doesn't go beyond what you'd expect from Somali pirates. The threat they pose is not that great. At best, it may prompt Sweden to invest in small pirate-hunting vessels for their navy, as well as increased border security, but it probably wouldn't justify a significant military build-up.

[quote]Needless to say, half of finland isn't enough to contain communism in the region.[/quote]

The Communism in the region is not spreading. Nor would it be trying to given their very vulnerable position. Communism isn't some kind of plague that infects the water and spreads outward. It needs people to spread it, and the people in the Communes are too busy trying to live day to day. And even if they wanted to spread it, they don't have the means.

I am sure Sotelo could have some kind of agreement with Sweden, but I doubt it would be anything extensive. You also have to bare in mind that Sweden values its neutrality a bunch. Even during the Cold War, Sweden remained neutral, and although they did lean a bit towards NATO, they never fully committed to helping either side. And even during WWII, Sweden played it safe and stayed neutral, selling shit to both sides.