is it south korea or republic of korea
South Korea South Korea, officially the Republic of Korea (abbreviated ROK), is a sovereign state in East Asia constituting the southern part of the Korean Peninsula.[14] Officially, its territory consists of the whole Korean Peninsula and its adjacent islands,[15] which are largely mountainous. South Koreans lead a distinctive urban lifestyle, as half of them live in high-rises[16] concentrated in the Seoul Capital Area with 25 million residents.[17]