Experts say there are good reasons South Korea has yet to follow through on $350 billion in U.S. investment it pledged as part of a deal to limit tariffs on its goods.U.S. Army soldiers crossing a pontoon bridge on the Imjin River during a joint military exercise in Yeoncheon, South Korea, in 2025. Kim Jae-Hwan / SOPA Images/LightRocket via Getty ImagesAug. 19, 2026, 12:40 PM EDTPresident Donald Trump gave a lot of reasons for his sudden order this week to scale back joint military exercises with South Korea: their cost, anger at Seoul for staying out of the Iran war, and his “very good” relationship with North Korean leader Kim Jong Un, who detests the drills. Just a moment.We are getting your experience ready.