True, but that's comparable only if these countries had the same responsibilities (it's like comparing people, say a soldier vs a librarian). Ireland for instance has no Air Force, and has to call on the RAF to provide air defence (as it happened when Russian Tu-95s intruded). Likewise, the rest of Europe relies entirely on NATO's firepower against Russian belligerence.
You can certainly shape a better society internally and have equitable social justice if you're free from the distraction of having to defend against external aggression.
Can you elaborate a bit on what you mean by "Russian belligerence"? Do you have some example of Europe relying on NATO's firepower against it?
In the absence of a European defence infrastructure like NATO that's pretty much all they have.
Russian belligerence being invading the Baltic states. Crimea and eastern Ukraine were less clear cut than supposed for historical reasons but many in the East live in fear of the same happening to them.
Similarly countries like Sweden and Japan are well armed and not in the business of disappearing people.
By painting with such broad strokes, we are comparing entirely different types of actions.
How would you know? The point of disappearing people is that they disappear, and you don't know how.