South Korea unveils most powerful missile which could reach North Korea underground bunkers

"If North Korea attempts to use nuclear weapons, it will face the resolute and overwhelming response of our military and the (South Korea)-US alliance," President Yoon Suk Yeol said.

"If North Korea attempts to use nuclear weapons, it will face the resolute and overwhelming response of our military and the (South Korea)-US alliance," President Yoon Suk Yeol said.