My two favorite subjects: unconventional warfare and north Korea. Alas, this article does not add anything substantive or positive to those two subjects. It is based on and inspired by the Special Warfare magazine article on a ROK and US Joint training Exercise from 2013. It is amazing how many articles the Special Warfare magazine article has spawned. In the last paragraph of the postscript (yes this piece is so long it has a postscript) the author credits Special Warfare magazine for the inspiration of this article.
However, readers should be forewarned. This is a long and hugely sensational article that brings in many disparate issues on the Korean peninsula (from WMD to OPCON Transfer to China to north Korean culture, i.e., Songbun, to rebellion theory of Ted Gurr to quotes from GEN Sharp and Leon Panetta to ISIS and the 2008 RAND study on how terrorist organizations are defeated to the US Army Operating Concept and more) . But to give you a hint of why this is so far-fetched is that the author was influenced by David Hackworth (whom he calls "a visionary Special Forces operator" who also founded Delta Force - perhaps the names Hackworth and Beckwith are easily confused) who supposedly asked the author to write a white paper in 1999 for unconventional warfare in Korea (and the author now knows Hackworth was thinking outside the box in 1999. He also cites the influence"mercenaries." Unfortunately he also claims influence by a great American and someone for whom I do have a lot of respect: the late COL Carl Bernard (of Task Force Smith and later Special Forces fame).
But this article is all over the map and written by someone who can pull together many different sources, articles, concepts, current events, and a smattering of doctrine to weave a sensational tale.