I don't think Sweden is a target. Let's just say they're thinking in the very, very long term. In the short-term, the move is most likely intended as a signal

I don't think Sweden is a target. Let's just say they're thinking in the very, very long term. In the short-term, the move is most likely intended as a signal to discourage an invasion of the Baltics, rather than their own territory. But in the longer term, what they're signaling to their much larger neighbor is: "Look, we know your history, and we've seen you play this game before. When it comes to Swedish territory -- don't even think about it."