North Korea, officially the Democratic People's Republic of Korea, is a country in East Asia constituting the northern part of the Korean Peninsula. The country is bordered to the north by China and by Russia along the Amnok and Tumen rivers, and to the south by South Korea, with the heavily fortified Korean Demilitarized Zone (DMZ) separating the two. North Korea, like its southern counterpart, claims to be the legitimate government of the entire peninsula and adjacent islands. Pyongyang is the country's capital and largest city.