8.North Korea

North Korea, officially the Democratic People's Republic of Korea, is a country in East Asia, in the northern part of the Korean Peninsula. The capital and largest city is Pyongyang. North Korea shares a land border with China to the north and north-west, along the Amnok and Tumen rivers. A small section of the Tumen River also forms North Korea's border with Russia to the northeast. The Korean Demilitarized Zone marks the boundary between North Korea and South Korea. The legitimacy of this border is not accepted by either side, as both states claim to be the legitimate government of the entire peninsula. The Empire of Japan annexed Korea in 1910.