Use {{location|NA}} to tag expeditions that took place in Namibia. It will add Category:Expeditions in Namibia to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the department or province 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:Expeditions in Otjozondjupa is a subcategory of Category:Expeditions in Namibia. The subcategories should be sorted in by their respective code.
Examples
{{location|NA}}: Namibia{{location|NA|OD}}: Otjozondjupa
