ROC and PROC don't recognize each others' passports, since both states hold the official position that the other state does not exist (and that travelling betwe

ROC and PROC don't recognize each others' passports, since both states hold the official position that the other state does not exist (and that travelling between the mainland and Taiwan does not, therefore, count as "international travel"). https://en.wikipedia.org/wiki/Mainland_Travel_Permit_for_Taiwan_Residents https://en.wikipedia.org/wiki/Mainland_Travel_Permit_for_Tai...