British National (Overseas)
The Hong Kong handover resulted in yet another nationality: "British National (Overseas)" or BN(O). There were some 3.5 million residents of Hong Kong who held British Dependent Territories citizen (BDTC) status by virtue of their connection with Hong Kong. Another 2 million other Hong Kong residents are believed to have been eligible to apply to become BDTCs. Upon handover, they would lose this status and became solely Chinese nationals. Uncertainty about the future of Hong Kong under Chinese rule led to the United Kingdom creating a new category of nationality for which Hong Kong BDTCs could apply. Any Hong Kong BDTC who wished to do so was able to acquire the (non-transmissible) status of British National (Overseas).