I think about how devastating it must feel for a small nation to get pulled into a superpower conflict that was never really theirs to begin with, their people paying the price for decisions made far above their heads -- staying neutral feels like the only way to protect what's actually theirs.
Switzerland's centuries-long neutrality was only sustainable because it was backed by a heavily-armed, mountainous, defensible geography and formal international recognition of that neutral status at the 1815 Congress of Vienna -- smaller nations without similar terrain or guarantees have often found neutrality offered little real protection once a larger conflict arrived at their border.