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South Korea’s Missile Defense: Balancing Between the U.S. & China

North Korea’s missile test on Sunday reaffirmed the case for greater missile defense in South Korea, but it did nothing to change China’s perspective on the matter. Beijing believes that any U.S. missile defense in South Korea would undermine its strategic nuclear deterrent, and therefore its national security. The U.S. and South Korean decision to deploy the Terminal High Altitude Area Defense (THAAD) system has strained relations between Seoul and Beijing. The Cipher Brief spoke with Tong Zhao, a fellow at the Nuclear Policy Program at the Carnegie Endowment in Beijing to learn more about each side’s perspective and to ask what could happen when the system is finally deployed.

The Cipher Brief: Many countries utilize missile defense systems as a vital part of their national security. Sometimes neighboring countries do not object, but in notable cases neighboring countries do. What conditions are usually present to turn the deployment of missile defense into a contentious issue?

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