There has never been a good option for NK.

www.brookings.edu/blog/order-from-chaos/2018/01/08/america-has-military-options-for-north-korea-but-theyre-all-bad/

Red phone green phone. Who calls whom depends on date.

www.telegraph.co.uk/news/2018/01/09/north-south-korea-begin-first-direct-talks-two-years/