Yeah, it's a fact. Sweden not only have a nuclear program during Cold War (frankly, who haven't?), but also toyed with the possibility of pre-emptive nuclear attack on USSR (!), in case they suspect that USSR is preparing for invasion. The RB-330 supersonic cruise missile was supposed to be a long-range first-strike weapon, for the single purpose of blasting the Baltic States ports thus disrupting the invasion efforts (and, also, several hudnred thousands of Latvians, Lithuanians and Estonians, by the way...) Eventually the project was scrapped, while Sweden military realised, that while they might just be able to hold off USSR by the nuclear deterrence, they definitely should not start the exchange themselves.