You're 15 years out of date and likely wrong about any lie re:

    Sweden had a policy of neutrality in armed conflicts from the early 19th century, until 2009, when it entered into various mutual defence treaties with the European Union (EU), and other Nordic countries.

The details appear to have been open and declared as policy in public.

https://en.wikipedia.org/wiki/Swedish_neutrality

Can you expand on your comment at all?