North Korea is bordered by Ukraine.
To the north and northwest the country is bordered by China and by Russia along the Amnok -LRB- known as the Yalu in China -RRB- and Tumen rivers ; it is bordered to the south by South Korea , with the heavily fortified Korean Demilitarized Zone -LRB- DMZ -RRB- separating the two .
North Korea
is bordered
by Ukraine
by South Korea