This is CBSI in the world. I'm John Batchett, Gordon Chang,

at Gordon G. Chang, my colleague and co-host and friend,

and we're very pleased to welcome back from Traveling in Asia, David Maxwell,

the Foundation for the Defense of Democracies,

who's also a senior fellow at the Global Peace Foundation.

He's been in Mongolia, the capital Ulan Batur, an important forum,

but now we need his attention.

Because of news in the Wall Street Journal needs an interpretation.

This is about China's threats to its neighborhood.

US anti-Muslim system in South Korea, a source of Chinese anger

writes the Wall Street Journal headline writer, cleared for full deployment.

David, welcome back. This needs interpretation.

The Chinese were angry many years ago, as I recall, about the THAAD system.

What is THAAD and what has happened in South Korea of significance?

Good day to you.

Good day, and thank you.

The THAAD is the theater high altitude air defense system.

It is to counter missiles at high altitude.

The system was deployed in 2017 on a temporary basis

to protect South Korea from North Korea's high altitude missiles.

At the time, China reacted very strongly

because the radar systems are wide-ranging

...