September 5, 2017 3:51 am JST

South Korea deploying more THAAD launchers

Move highlights hard-line shift to contain North Korea's ballistic threat

KENICHI YAMADA, Nikkei staff writer

The U.S. military test-fires the Terminal High Altitude Area Defense interceptor system. © (Courtesy of U.S. Department of Defense)

SEOUL -- South Korea will let the U.S. military install four more missile interceptor launchers under a decision Monday, aiming to put more pressure on a North Korea rapidly advancing its nuclear and ballistic missile development.

Two Terminal High Altitude Area Defense launchers now operate within the South's borders. The American missile defense system is designed to hit enemy rockets re-entering the atmosphere at altitudes of roughly 50km to 140km.

Then-President Park Geun-hye signed off on THAAD's deployment last July to protect key military and civilian assets from short- to medium-range North Korean missiles. But the decision drew pushback from residents of the affected Seongju area.

Current President Moon Jae-in, who replaced Park this May a few months after her impeachment and removal, had long signaled skepticism of the missile defense system. Citing a need to respect legal processes, his administration decided to hold off on a final decision until after an environmental impact assessment of the staging site.

A recent study by the Ministry of National Defense found the environmental impact acceptable under certain conditions. After reviewing it, the Ministry of Environment branch overseeing the affected area announced Monday its conditional consent for THAAD's installation.

The ministry ruled out the possibility of the environmental impact exceeding that at launch sites in Guam and elsewhere. But it did require monitoring of the electromagnetic radiation generated by the battery, among other stipulations.

Defense Minister Song Young-moo told the parliament Monday that the additional launchers will be rolled out shortly, though he declined to give a timetable. THAAD batteries normally operate in sets of six launchers, giving rise to concerns that South Korea's two are not enough to take full advantage of the system's capabilities.

After Pyongyang launched the Hwasong-14 intercontinental ballistic missile for the second time in late July, Moon reversed his previously cautious stance and ordered discussions with the U.S. on deploying more launch units. He also followed the Defense Ministry's wishes by narrowing the scope of the environmental assessment, lending to a speedier conclusion. The administration is apparently treating North Korea's ICBM and nuclear tests with a greater sense of urgency.

"The president's position is that there is no other way except for sanctions and pressure in this current situation," said a source close to South Korea's presidential Blue House. Although Moon has not abandoned his commitment to eventual dialogue, the administration is steadily shifting focus toward cooperating with the U.S. and Japan.

China has consistently taken a hard line against installing THAAD near its borders, arguing that the hardware's high-sensitivity radar could compromise national security. Adding more launchers is all but certain to raise Beijing's ire.

The Rodong Sinmun, the official newspaper of North Korea's ruling Workers' Party, said Monday that deploying THAAD inside the South greatly raised the risk of nuclear war. The interceptors cannot protect against North Korean ballistic missiles, the publication argues.

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