China and North Korea's worst nightmare is coming true with US missile defences in South Korea

THAAD missile test AlaskaLeah Garton/Missile Defence AgencyA Terminal High Altitude Area Defence (THAAD) interceptor launched from the Pacific Spaceport Complex Alaska in Kodiak during Flight Test THAAD (FTT)-18 on July 11, 2017.

In light of surging tensions between North Korea, its neighbours, and the US, South Korea has decided to deploy more powerful US missile defence batteries.

South Korean President Moon Jae In, who had initially been resistant to increased US missile defence deployments, requested talks on improving his country’s defensive posture in light of recent threats from North Korea.

“They’re moving forward,” Col. Rob Manning, a Pentagon spokesman, told South Korea’s Yonhap News. “In early May, we got initial intercept capability and they continue to build on that capability,” said Manning of the US moving the defences into South Korea during a transitional period before Moon came to power.

The defence battery, known as the Terminal High-Altitude Area Defence, or THAAD, has the best record and widest range of any missile defence in the region, and could potentially blunt or defeat a North Korean missile attack on Seoul.

Current THAAD batteries in South Korea only protect military installations west of Seoul and do not currently cover the capital city of 26 million people.

Moon increasing THAAD deployments sends a strong signal to North Korea. Although the regime’s ICBMs do not threaten South Korea, China has threatened economic retaliation towards South Korea in response.

Even though THAAD is a purely defensive weapons system that doesn’t have warheads on its missiles, China fears its powerful radar. Some estimates of the radar’s range place much of mainland China within the US’ sights, meaning that one day the US could possibly integrate THAAD into a larger missile defence system that would neuter China’s ability to launch nuclear missiles without warning, thereby eroding its nuclear deterrent and national power.

“China is not too worried that the United States might suddenly attack North Korea. It is worried about THAAD,” said Sun Zhe, co-director of the China Initiative of Columbia University’s School of International and Public Affairs told Reuters.

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