For the first time in its history, South Korea has refused a US demand to send troops to an American war. This is the same country that sent over 300,000 soldiers to fight in the Vietnam War. Regular guest K.J. Noh joins me to explain what is behind President Lee Jae Myung's refusal to join Trump's war on Iran. The pressure comes from a militant labour movement in the streets, Iran's warning over Korea's Gulf assets, and a US empire exposed as a paper tiger. We trace this struggle back to the US-backed massacres South Korea was built on, and ask how far Washington will go to keep its most loyal vassal in line.