Use {{location|ID}} to tag expeditions that took place in Indonesia. It will add Category:Meetup in Indonesia to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the wilayah or even the 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:Meetup in Jakarta is a subcategory of Category:Meetup in Jawa, which is a subcategory of Category:Meetup in Indonesia. The subcategories should be sorted in by their respective code.
Examples
{{location|ID}}: Indonesia{{location|ID|JW}}: Jawa{{location|ID|JW|JK}}: Jakarta
