Use {{location|SI}}
to tag expeditions that took place in Slovenia. It will add Category:Meetup in Slovenia to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the Občina that the expedition took place in.
If the category link appears red, do not worry and create the category. Make sure that it is included in the appropriate parent category, for instance, Category:Meetup in Ljubljana is a subcategory of Category:Meetup in Slovenia. The subcategories should be sorted in by their respective code.
Examples
{{location|SI}}
: Slovenia{{location|SI|061}}
: Ljubljana