Lastly, but certainly not least, these aforementioned developments (nuclear/missile and cyber warfare) tend to mask a large-scale humanitarian crisis that has been unfolding in North Korea for quite some time. The articles below highlight the humanitarian crisis ongoing in the DPRK and also posit that any strategy for dealing with the collapse or fall of the North Korean government will need to address a large-scale famine and mass-migration (towards China) in its aftermath.
Preventing a Post-Collapse Crisis in North Korea: How to Avoid Famine and Mass Migration [1]
Significant Food Shortages Likely in North Korea [2]
Fearing the Worst, China Plans Refugee Camps on North Korean Border [3]
Links
[1] https://www.e-education.psu.edu/geog128/sites/www.e-education.psu.edu.geog128/files/Articles/Preventing%20a%20Post-Collapse%20Crisis%20in%20North%20Korea.pdf
[2] https://www.38north.org/2017/10/adinville101617/
[3] https://www.nytimes.com/2017/12/11/world/asia/china-north-korea-border.html?_r=0