Foreign relations of South Korea
On January 18, 1952 The first president of South Korea Syngman Rhee declared that the vicinity of Dokdo was a territory of South Korea (Syngman Rhee line). Subsequently, some 3,000 Japanese fishermen who conducted fishery operations in this vicinity were captured. This incident, called the Dai Ichi Daihoumaru Ship case strained relations between South Korea and Japan.
History of South Korea
After the armistice, South Korea experienced political turmoil under years of autocratic leadership of Rhee Syngman, which was ended by student revolt in 1960. Throughout his rule, Rhee sought to take additional steps to cement his control of government. These began in 1952, when the government was still based in Busan due to the ongoing war. In May of that year, Rhee pushed through constitutional amendments which made the presidency a directly-elected position. To do this, he declared martial law, arrested opposing members of parliament, demonstrators, and anti-government groups. Rhee was subsequently elected by a wide margin.