The Torah reading on Chol HaMoed Sukkot is different in Israel (each day’s mussaf sacrifice is read four times) and the Diaspora (more than one day’s portion is read to take account of sfeika d’yoma (the doubt as to which day the festival actually started)).
If there is a minyan located in Israel but composed entirely of foreign tourists, what should they read? What if the majority are foreigners, but there is a minority of locals?