US THAAD launchers return to South Korea amid missile interceptor doubts

All six THAAD launchers that were temporarily deployed at Osan Air Base have been moved back to the Seongju installation in South Korea after a three‑month stay. While the THAAD system itself has not left the peninsula, analysts say the interceptor missiles may have been sent to the Middle East to support U.S. operations against Iran. U.S. forces in Korea have previously stressed that no THAAD system has left the region, though they did not comment on the movement of ammunition.

Each THAAD battery consists of six launchers and a total of 48 interceptors designed to engage ballistic missiles at altitudes of 40‑150 km. The possible relocation of some interceptors suggests strain on U.S. missile stocks amid recent tensions with Iran, prompting Washington to draw on assets stationed elsewhere.

Although the launchers are back at Seongju, it remains unclear whether all 48 interceptors have been returned, leaving the operational readiness of the system against North Korean missile threats uncertain.