The Sea of Japan borders North Korea to the east.
North Korea is bordered by China and Russia to the north.
China and Russia border North Korea to the north while South Korea borders North Korea to the south. Russia's border with North Korea is on the far north east tip and is very small. China's border with North Korea is the largest of the North Korean borders.
Probably never, but North Korea will have to eventually open up its borders.
Mongolia, North Korea
Russia.
North Korea has total control of that country and has sealed its borders to outsiders.....
Google a map. South Korea borders NORTH Korea.
North Korea shares a border with China to the north and with South Korea to the south.
North Korea is located in East Asia, sharing its borders with China, Russia, and South Korea. Its capital city is Pyongyang.
Japan
North Korea, obviously. South Korea hasmaritime borders with China and Japan.