China’s Hypersonic Test ‘Increases Tension in the Region,’ Pentagon Chief Says

SEOUL—Defense Secretary Lloyd Austin acknowledged Thursday that China’s hypersonic test in July had boosted unease in the region, but downplayed it as just one of many concerning behaviors. 

“We have concerns about the military capabilities the [People’s Republic of China] continues to pursue, and the pursuit of those capabilities increases tension in the region,” Austin said about the launch, in response to a Defense One question at the Security Consultative Meeting in Seoul. 

Austin is one of several top U.S. defense officials who have begun talking more openly about the July launch and its...