Kim Jong-il is designated Eternal Chairman of the National Defence Commission.
In December 2013, Kim Jong-un's uncle Jang Song-thaek was arrested and executed for treachery
 It is thought that Kim's official birthyear was changed for symbolic reasons; 1982 marks 70 years after the birth of his grandfather, Kim Il-sung, and 40 years after the official birth of his father Kim Jong-il

