Syngman Rhee
On July 20, 1948, Rhee was elected president of the Republic of Korea in the South Korean presidential election, 1948 with 92.3% of the vote; the second candidate, Kim Gu, received 6.7% of the vote. On August 15, the Republic of Korea was formally established in South Korea and Rhee was inaugurated as the first President of the Republic of Korea. The next month, on September 9, the north also proclaimed statehood as the Democratic People's Republic of Korea. Rhee himself had been an independence activist, and his relations with the "chinilpa" Korean elites who had collaborated with the Japanese were, in the words of the South Korean historian Kyung Moon Hwang, often "contentious," but in the end an understanding was reached in which, in exchange for their support, Rhee would not purge the elites. In particular, the Koreans who had served in the colonial-era National Police, whom the Americans had retained after August 1945, were promised by Rhee that their jobs would not be threatened by him. Upon independence in 1948, 53% of South Korean police officers were men who had served in the National Police during the Japanese occupation.
South Korea
In 1960, a student uprising (the "April 19 Revolution") led to the resignation of the autocratic President Syngman Rhee. A period of political instability followed, broken by General Park Chung-hee's May 16 coup against the weak and ineffectual government the next year. Park took over as president until his assassination in 1979, overseeing rapid export-led economic growth as well as implementing political repression. Park was heavily criticised as a ruthless military dictator, who in 1972 extended his rule by creating a new constitution, which gave the president sweeping (almost dictatorial) powers and permitted him to run for an unlimited number of six-year terms. However, the Korean economy developed significantly during Park's tenure and the government developed the nationwide expressway system, the Seoul subway system, and laid the foundation for economic development during his 17-year tenure.