Japanese Defense Minister Koizumi and U.S. Defense Secretary Hegse agreed to accelerate joint missile development and production during a meeting in Singapore [1].
The agreement marks a significant shift in the security partnership as both nations seek to counter regional challenges, specifically those involving China, through a more coordinated military response [1, 2].
The two officials met May 31, 2026 [1], during the Asia Security Conference. The focus of the cooperation involves the joint development and production of the SM-3 Block IIA interceptor and the AMRAAM air-to-air missile [2].
Defense Minister Koizumi proposed a specific initiative to drive this cooperation. He said, "As an initiative to further accelerate the efforts of Japan-US cooperation, including the joint development and joint production of missiles, I proposed 'Operation Supercharge' and discussed specific measures" [1].
Prime Minister Takashi said that the two nations agreed to promote a wide range of security cooperation, including the joint development and production of missiles, to strengthen the deterrence and response capabilities of the U.S.-Japan alliance [2].
The move aims to create a firmer deterrence posture in the Indo-Pacific. By streamlining the production of advanced interceptors and air-to-air weaponry, the allies intend to reduce reliance on separate supply chains and increase the speed of deployment [1, 2].
“I proposed 'Operation Supercharge' and discussed specific measures”
This agreement signals a transition from the U.S. primarily providing equipment to Japan toward a true co-production model. By integrating the industrial bases of both nations for high-end systems like the SM-3 and AMRAAM, the allies are attempting to build a more resilient and rapid military infrastructure to counter Chinese influence in the Pacific.
