SEOUL South Korea and the United States said on Friday they would deploy an advanced missile defence system in South Korea to counter a threat from North Korea, drawing a sharp and swift protest from neighbouring China.
The Terminal High Altitude Area Defense, or THAAD, anti-missile system will be used only as protection against North Korea's growing nuclear and ballistic missile capabilities, the South's Defence Ministry and the U.S. Defence Department said in a joint statement.
"This is an important ... decision," General Vincent Brooks, commander of U.S. forces in South Korea, said in a statement. "North Korea's continued development of ballistic missiles and weapons of mass destruction require the alliance to take this prudent, protective measure to bolster our ... missile defense."
Beijing said on Friday it lodged complaints with the U.S. and South Korean ambassadors over the THAAD decision.
China said the system would destabilize the security balance in the region without achieving anything to end the North's nuclear programme. China is North Korea's main ally but opposes its pursuit of nuclear weapons and backed the latest United Nations sanctions against Pyongyang in March.
"China strongly urges the United States and South Korea to stop the deployment process of the THAAD anti-missile system, not take any steps to complicate the regional situation and do nothing to harm China's strategic security interests," the foreign ministry said in a statement.
Selection of a site for the system could come "within weeks," and the allies were working to have it operational by the end of 2017, a South Korean Defence Ministry official said.
The THAAD will be deployed to U.S. Forces Korea "to protect alliance military forces from North Korea's weapons of mass destruction and ballistic missile threats," the joint statement said. The United States maintains 28,500 troops in South Korea, a legacy of the 1950-53 Korean war.
"When the THAAD system is deployed to the Korean Peninsula, it will be focused solely on North Korean nuclear and missile threats and would not be directed towards any third-party nations," the statement said.
The decision to deploy THAAD is the latest move to squeeze the increasingly isolated North, which also includes a series of bilateral sanctions by Seoul and Washington as well as layers of U.N. sanctions.
South Korea has been reluctant to discuss THAAD openly, given the opposition of China, its main trading partner and an increasingly close diplomatic ally. South Korean President Park Geun-hye and her Chinese counterpart, Xi Jinping, have held seven summit meetings since both took office in 2013.
Russia is also opposed to basing a THAAD system in South Korea. Its foreign ministry will take the deployment into account in Moscow's military planning, Interfax news agency quoted it as saying on Friday.
China worries the THAAD system's radar will be able to track its own military capabilities.
China "knows full well that the THAAD being deployed to South Korea is not aimed at it at all," said Yoo Dong-ryol, who heads the Korea Institute of Liberal Democracy in Seoul. "It just doesn't like more American weapons system being brought in so close to it."
Japanese Deputy Chief Cabinet Secretary Koichi Hagiuda said Tokyo "supports the deployment because it bolsters security in the region."
Japan has said it is considering another layer of ballistic missile defence, such as THAAD, to complement ship-borne missiles aboard Aegis destroyers in the Sea of Japan and its ground-based Patriot missiles.
Built by Lockheed Martin Corp, THAAD is designed to defend against short and medium-range ballistic missiles by intercepting them high in the Earth's atmosphere, or outside it. The United States already has a THAAD system in its territory of Guam.
Each system costs an estimated $800 million and is likely to add to the cost of maintaining the U.S. military presence in South Korea, an issue in the U.S. presidential campaign. Republican candidate Donald Trump has argued that U.S. allies South Korea and Japan should pay more towards their own defence.
A joint South Korea-U.S. working group is determining the best location for deploying THAAD. It has been discussing the feasibility of deployment and potential locations for the THAAD unit since February, after a North Korean rocket launch put an object into space orbit.
The launch was condemned by the U.N. Security Council as a test of a long-range missile in disguise, which North Korea is prohibited from doing under several Security Council resolutions.
North Korea rejects the ban, saying it is an infringement on its sovereignty and its right to space exploration.
North Korea in late June launched an intermediate range ballistic missile off its east coast in a test that was believed to show some advancement in the weapon's engine system.
On Thursday, Pyongyang said it was planning its toughest response to what it called a "declaration of war" by the United States after the U.S. Treasury Department blacklisted leader Kim Jong Un for human rights abuses.
Also on Thursday, a U.S. official said the administration of President Barack Obama was asking other nations to cut the employment of North Korean workers as a way to reduce Pyongyang's access to foreign currency.
(Additional reporting by David Brunnstrom in Washington and Ben Blanchard in Beijing; Editing by Bill Tarrant and Lisa Von Ahn)
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Updated Date: Jul 08, 2016 22:05 PM