History of South Korea
On August 15, 1948, the Republic of Korea was formally established, with Rhee Syngman as the first president. With the establishment of Rhee's government, de jure sovereignty also passed into the new government. On September 9, 1948, a communist regime, the Democratic People's Republic of Korea (North Korea), was proclaimed under Kim Il-sung. However, on December 12, 1948, by its resolution 195 in the Third General Assembly, the United Nations recognized the Republic of Korea as the sole legal government of Korea.
Citizenship in North Korea
North Korea adopted a nationality law in 1963: 15 years after being founded on September 9, 1948. It has since been revised in 1995 and 1999. The nationality law of the Democratic People's Republic of Korea (DPRK) governs who is a citizen of the DPRK, and how one may gain or lose such citizenship. It prescribes citizenship qualifications, citizen rights, and citizen protections. While containing just 16 articles, it covers most of the basic features which can be found across modern citizenship legislation in other nations. Furthermore, North Korean nationality law incorporates anyone who resided in the country since the foundation of the DPRK. This includes varied groups due to the DPRK's annexation by Japan and the United States, occupation by the Soviet Union and final surrender to the Allies in 1945. The law assumes that people registered in North Korea became nationals of North Korea.