North Korea

The Democratic People's Republic of Korea (DPRK; Chosŏn'gŭl: 조선민주주의인민공화국; Chosŏn Minjujuŭi Inmin Konghwaguk), commonly called North Korea, is a country in East Asia, in the northern half of the Korean Peninsula. Its capital is Pyongyang, the country's largest city by both land area and population.

North Korea shares a land border with China to the north and north-west, along the Amnok (Yalu) and Tumen rivers. A small section of the Tumen River also forms North Korea's short border with Russia to the northeast. The Korean Demilitarized Zone marks the boundary between North Korea and South Korea.

More information on the Wikipedia page