The debate on missile defense in South Korea is accelerating. Increasingly it looks like there will be some kind of stationing of ‘Terminal High Altitude Area Defense’ (THAAD, pictured). This is almost certainly a good thing, because North Korea’s programs keep going and going; no one would really trust Pyongyang to adhere to a deal at this point anymore anyway; and North Korea is not in a nuclear rule-system, like the IAEA or NPT, so we really have no idea what’s happening in much detail. Remember that their HEU program was kept hidden pretty well and then suddenly revealed.
Given all this uncertainty, and North Korea’s established history of lying, especially about its nuclear program, missile defense strikes me as a no-brainer. It is clearly a defensive weapon too, so it does not add to South Korea’s ability to offensively strike North Korea. The North won’t really be able to credibly criticize the system as a ‘tool of imperialism’ or something (although they will certainly say that anyway). Also, in passing for IR theorists, I’d say this debate nicely illustrates both the security dilemma and the offense-defense balance debate.
The full essay follows the jump; it was first published in The Diplomat here earlier this month.