Korea, Rep.

# Overview

South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It extends over the southern half of the Korean Peninsula and includes the adjacent islands. It borders North Korea to its north along the Korean Demilitarized Zone, with the Yellow Sea to the west and the Sea of Japan to the east. It has a population of about 52 million, of which half live in the Seoul metropolitan area, the world's ninth most populous metropolitan area; its other major cities are Busan, Daegu, and Incheon.