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.
Day of the Foundation of the Republic (North Korea)
Following the Liberation of Korea in 1945 by the Soviet and American forces, a communist Soviet military regime was set up in the northern part of Korea. A new Supreme People's Assembly was elected in August 1948, and on 3 September a new constitution was promulgated. The Democratic People's Republic of Korea was proclaimed on 9 September, with Kim Il-sung as Premier. Because the date is 9 September, it is also called 9 · 9 (old version).