North Korea is located in East Asia in the Northern half of Korea, partially on the Korean Peninsula. It borders three countries: China along the Amnok River, Russia along the Tumen River, and South Korea to the south.
They are both, I believe, considered megapolis's
A major neutral country was, as an example, Yugoslavia (the leader non-aligned movement), which supported trade relations with both NATO and the Warsaw Pact. In the later years of the Cold War, China, became mostly neutral (though some may say that they became more Western Aligned). Throughout the Cold War, India officially didn't join any alliance, however they were often supported by the Soviet Union in conflicts against China or Pakistan.