> There are lots of countries that are strictly militarily non-aligned (as in, not members of any mutual defense pact.)
In Europe?
> It is true that there are relatively few countries that are not either militarily aligned or strongly in the geopolitical orbit of one or more of Russia, China, or the US, but...Serbia isn't in this category, either.
Actually, Serbia often gets criticized for playing a juggling game between EU, Russia, and China. As far as orbits go, for all its bravado about 'brotherly' Russia, it is actually mostly dependent on the EU
