Hong Kong–United Kingdom relations a deeply important role in the formation of the modern Hong Kong. Sovereignty of Hong Kong was ceded to the UK "in perpetuity" on 29 August 1842 through the Treaty of Nanking. The UK further expanded the territory of Hong Kong in 1860 by another cessation, plus a 99-year lease of the New Territories in 1898. The stability, security, and predictability of British law and government enabled Hong Kong to flourish as a centre for international trade. Localisation of teritary institutions, the Hong Kong government and the independent Judiciary in the run-up to the 1997 Handover of sovereignty, caused a
Alliance of Resuming British Sovereignty over Hong Kong and Independence that its convenor Billy Chiu Hin-chung had left the party, citing a difference in opinion on the issue of independence, as the party believed that Hong Kong could benefit most under a constitutional monarchy like Australia, New Zealand, and Canada, while Chiu sought for a Hong Kong republic. Alliance of Resuming British Sovereignty over Hong Kong and Independence The Alliance of Resuming British Sovereignty over Hong Kong and Independence (; RBSI) is a localist political party in Hong Kong. The party aims to repeal the Sino-British Joint Declaration, resume British sovereignty, then make Hong Kong an independent state. The party