U.S. and Japan Plan Missile Plant in Japan to Supply F‑35s Under ‘Operation Supercharge’
The U.S. and Japan have agreed to set up a missile production facility in Japan for advanced medium‑range air‑to‑air missiles used by F‑35 fighters, under an initiative called Operation Supercharge. The plan aims to expand allied munitions output inside the Indo‑Pacific as Washington and Tokyo deepen their defense industrial ties.
The United States and Japan are moving to manufacture advanced air‑to‑air missiles on Japanese soil, tightening their defense industrial partnership in the Indo‑Pacific. Under an initiative called Operation Supercharge, the two countries have agreed to establish a production facility in Japan for advanced medium‑range air‑to‑air missiles used by F‑35 stealth fighters.
Officials announced the deal during defense talks in the Philippines on 30 October, where U.S. representatives met regional partners to discuss security in the South and East China Seas. Public statements so far have not specified when construction will begin, how many missiles the plant will produce, or exactly where in Japan it will be located. What has been made clear is the goal: build more high‑end munitions closer to a potential front line.
These medium‑range air‑to‑air missiles are core weapons for F‑35 fleets. They give the aircraft reach against enemy planes at distances suited to possible clashes over places like the Taiwan Strait or the East China Sea. Producing them in Japan is meant to shorten supply lines and ease pressure on U.S. factories already supporting multiple conflicts and commitments.
For Japanese regions that might host the facility, the project would bring investment and defense‑linked jobs. It would also mark their communities as locations tied directly to front‑line weaponry. That dual reality — economic benefit combined with a higher profile in any future conflict — will shape local political debate once a site is named.
From an operational standpoint, a missile plant in Japan serves several functions at once. It boosts the resilience of Japanese and U.S. F‑35 squadrons based in and around the country by giving them a closer source of resupply. It signals to allies such as the Philippines and Australia that Washington and Tokyo are willing to put long‑term industrial projects behind their security promises, not just hold exercises or sign communiqués.
The plan also fits into a broader shift in Japan’s defense posture. Tokyo has already moved to increase military spending and acquire longer‑range strike capabilities. Hosting production of sophisticated missiles for advanced fighters extends that trajectory and deepens Japan’s role in the alliance supply chain.
Regional rivals are likely to study the project closely. While the announcement did not name any adversary, governments in Beijing and Pyongyang routinely criticise steps that expand Japan’s defense capacity or embed U.S. weapons production in the region. A functioning missile plant in Japan would be a visible symbol of how far the U.S.‑Japan partnership is willing to go in preparing for high‑intensity scenarios.
Key developments to watch now include more detailed joint statements from Washington and Tokyo laying out the plant’s location, ownership, and schedule; reactions from nearby countries; and any sign that other U.S. munitions might eventually be co‑produced in Japan. Changes in Japanese export rules that affect how these missiles can be transferred abroad would also indicate how far this new industrial role might extend.
Sources
- OSINT