Park Chung-hee
After Syngman Rhee's resignation, an interim government briefly held power until Major General Park Chung-hee took control through a military coup on May 16, 1961. Amid pressure from the United States, the new military government decided to hold elections in 1963 to return power to a civilian government. Park Chung-hee ran for president in those elections and was narrowly elected. In 1967 and 1971, Park Chung-hee ran for re-election and won using a constitutional amendment that allowed a president to serve more than two terms.