Use {{location|SK}} to tag expeditions that took place in Slovakia. It will add Category:Meetup in Slovakia to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the kraj 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 Bratislavský kraj is a subcategory of Category:Meetup in Slovakia. The subcategories should be sorted in by their respective code.
Examples
{{location|SK}}: Slovakia{{location|SK|BL}}: Bratislavský kraj
