North Korea proposes the “one country, two systems” formula to achieve the unification of Korea by a confederation of two systems within the same country.  China has also encouraged this idea; The difference between North Korea`s motivation and China`s is that North Korea is trying to maintain two separate governments, while China seeks to unite gradually because it wants to bring stability to the Korean peninsula with a centralized government.  Following Hu Jintao`s accession as Secretary General of the Communist Party of China on 15 November 2002, the People`s Republic of China ended the promotion of immediate unification by “one country, two systems”, although it remains an official policy. The “one country, two systems” framework was not mentioned in the anti-secession law of the People`s Republic of China adopted on 14 March 2005 to prevent the then-expanding Taiwanese independence movement. A new policy of progressive economic integration and political exchange is now favoured within the framework of the 1992 consensus: this new policy was adopted during the Pan-Blue visits to mainland China in April 2005 and all the major cross-border exchanges that followed, Especially after Ma Ying-jeou was highlighted by the pro-reunification Kuomintang party the 2008 presidential elections in the Republic of China. During his visit to Beijing in March 2012, the former president of the Kuomintang (KMT) proposed to a single country, two areas (simplified Chinese: 两兩) to regulate relations between the straits.  In his speech on the occasion of the 2013 National Day of the Republic of China on 10 October 2013, President Ma Ying-jeou addressed the public and said that people on both sides of the Taiwan Strait, according to ethnic origin, were Chinese and that relations between the straits were not international relations.  The idea of two systems in the same country resurfaced when Beijing began discussions with Britain and Portugal, which led Hong Kong and Macao respectively. The legal and judicial systems have been maintained. The common law continues to apply.
Overseas judges will preside as non-permanent judges of the Final Court of Appeal, Hong Kong`s highest appeals court. Macau did not react in the same way, unlike the many demonstrations and riots that broke out in Hong Kong.  According to Jason Chao, a former president of the Pro-Democracy New Macao Association, Macau is in a different situation than Hong Kong because Macau does not want freedom and autonomy.  Instead, the majority of Macau`s population is pro-Chinese.   One reason is that about half of the 600,000 people living in Macau are Chinese immigrants.  In December 2019, Li Zhanshu, chairman of the Standing Committee of the National People`s Congress, said there was a “strong sense of international identity” in Macau.  In the first speech of the Secretary General of the Communist Party of China, Xi Jinping, in Macau in December 2019, on the occasion of the twentieth anniversary of the handover of the Portuguese to the Chinese, he described Macau as a “magnificent chapter in the short history of a country, two experiences of systems”.  The current Chief Executive, Ho Iat Seng, said that “Macao will be an example of China`s reunification,” and Xi agreed with the “Macau model” because Macau has properly followed the “one country, two systems” agreement.   As a reward for Macau`s peaceful behaviour and lack of anti-government protests, Xi Jinping Macau has given more Chinese land to Hengqin Island.  The aim is to enable Macau to develop its education and health system and to integrate Macao more physically with China.   In the 1980s, Deng`s China began discussions with Britain and Portugal on the transfer of the two territories.