North Korea, officially the Democratic People's Republic of Korea (DPRK), is a state in East Asia, occupying the northern half of the Korean Peninsula. Its capital and largest city is Pyongyang. The border between North Korea and South Korea is called the Korean Demilitarized Zone. The Amnok River is the border between North Korea and China. The Tumen River in the extreme north-east is the border with Russia.

More information about North Korea: Wikipedia.org