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GENEVA — Washington is concerned about hypersonic missile technology and its potential military applications by China and Russia, a U.S. arms control official said on Monday, after a media report that Beijing had tested a nuclear-capable hypersonic glide weapon.
Hypersonic weapons are usually defined as missiles that fly more than five times the speed of sound, and a race is underway for the next generation of long-range weapons that are harder to detect and intercept.
The Financial Times, quoting five people familiar with the matter, said at the weekend that China had tested a weapon in August that flew through space and circled the globe before cruising down toward a target which it missed.
The Chinese foreign ministry denied the report. It said it had carried out a routine test in July, but added: "It was not a missile, it was a space vehicle."
The United States and Russia have both tested hypersonic weapons but U.S. disarmament ambassador Robert Wood said that Washington had concerns about their possible use.
"Hypersonic technology is something that we have been concerned about, the potential military applications of it and we have held back from pursuing, we had held back from pursuing military applications for this technology," he told a small group of reporters in Geneva.
"But we have seen China and Russia pursuing very actively the use, the militarization of this technology so we are just having to respond in kind...We just don't know how we can defend against that technology, neither does China, neither does Russia."
Wood was referring to the difficulty of missile defense systems to track such high-speed weapons that can maneuver and evade shields intended to stop them from entering a territory.
How hypersonic missiles work, why they matter
President Donald Trump calls them “super-duper" missiles though they’re better known as hypersonic weapons. They are at the heart of U.S. worries about China and Russia."The Russians have a hypersonic glide vehicle called the Avangard, one of their heavy ICBMs," Wood said. "We have known about (that). They have, in essence, it's captured in the New START agreement (on nuclear arms reduction), it's not quite developed yet."
"But this type of technology is worrisome because we just haven't had to face it before," he added.
Russia and China did not immediately respond to his comments.
Concern mixed with hope
Wood, who is the U.S. envoy to the U.N.-sponsored Conference on Disarmament in Geneva, voiced hope that the new technology could be addressed or "captured" in some kind of internationally agreed principle or legal mechanism in the future.
U.S. Defense Secretary Lloyd Austin said separately that Washington was closely watching China's development of advanced weapons systems though he declined to comment directly on the Financial Times' report.
"We watch closely China's development of armament and advanced capabilities and systems that will only increase tensions in the region," Austin told reporters during a visit to the former Soviet republic of Georgia.
He said Washington would remain focused on the military challenge from Beijing.
Contributing: David Chkhikvishvili
