The Masterplan for Stopping North Korea’s Deadly Underwater Nukes

May 14, 2015

The National Interest:

North Korea’s apparently successful test of a workable submarine launched ballistic missile (SLBM) was big news over the weekend.

Signs that North Korea had been working on designing and testing both an SLBM and a submarine with the vertical missile launch tubes capable of firing them have been circulating for some time. In March, Admiral CD Haney, commander of US Strategic Command, warned that Pyongyang was working towards a sea-based deterrence capability. Some South Korean defense officials say that North Korea could have a functioning submarine and ballistic missile in 2-3 years. Whether Pyongyang is able to miniaturize a nuclear warhead in that time is up for debate.

Robert Kelly yesterday wrote a great analysis of the security and political ramifications stemming from the launch. I believe he is right in that this development will be fodder for American hawks, particularly with a presidential campaign coming up next year…

Kelly also argues that North Korean second-strike capabilities will lead to greater pressure from the US on South Korea to deploy land-based missile defense systems. I think this is true, but South Korea is more likely to push for greater cooperation with the US on sea-based missile defenses.

One of the advantages of mobile missile-launch platforms such as submarines is their ability to relocate to different azimuths in order to gain an advantage over static land-based BMD systems. But if you know the rough location of the submarine through ASW trailing, destroyers equipped with BMD systems can close in on the likely launch point and take out the missiles in the vulnerable ascent phase. South Korea already has three KDX-III class destroyers with some BMD capability, and is investing in more Aegis-equipped cruisers, with six planned by 2019.

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Curtis Stiles - Chief of Staff