I dont have an answer to this it would take to long to write, sorry.
North Korea has a closer relationship with China because both of those countries have, at some point in their history, implemented a communist regime. Also, during the Korean war, the United States were very involved which could cause a feeling of animosity between the U.S. and North Korea.
A or B I just did this, ummm yea, cause she became a monk for the rest of her life converting people to monk and making the places where monks live.
Sorry I dont have an exact answer.