These are some articles I found helpful for catching up on the situation this week:
An opinion piece in Scientific American that argues that this week’s nuclear test does not actually change all that much:
An opinion piece from Foreign Policy that chides all of us for not expecting that this was exactly what North Korea was planning to do:
Welcome to the Thermonuclear Club, North Korea!
http://thediplomat.com/2016/02/what-is-thaad-what-does-it-do-and-why-is-china-mad-about-it/
A New York Times article discussing the options the US has in responding if there is another missile test in the near future: