Use {{location|TN}} to tag expeditions that took place in Tunisia. It will add Category:Meetup in Tunisia to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the Wilayat 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 Wilayat Nabeul is a subcategory of Category:Meetup in Tunisia. The subcategories should be sorted in by their respective code.
Examples
{{location|TN}}: Tunisia{{location|TN|21}}: Wilayat Nabeul
