The CEO of Boeing’s Defense, Space and Security division on Wednesday said the U.S. was already able to defend against intercontinental ballistic missile (ICBM) attacks from North Korea, using the company’s Ground-based Midcourse Defense (GMD) system.

Leanne Caret answered unequivocally “yes” when asked by CNBC if the GMD system could defend the United States from North Korean attacks.

“I had the opportunity to be there for the test at the end of May… We hit a bullet with a bullet,” Caret told the outlet.

The Boeing-made GMD system is designed to intercept ICBMs headed towards the United States and conducted its most