Primary parallel: Japan's FY2026 request grouped a small multipurpose UUV for intelligence collection inside a ¥128.7bn SHIELD acquisition package. One year later the vehicle is gone from the framing and the modules have their own lines: stand-off missile launch, and search, attack and underwater-network functions. The vehicle stopped being the unit of account.
Counter-parallel: A research line is not a programme. Both FY2027 undersea lines are 事項要求, open-ended requests carrying no amount, and the ministry names no vehicle, supplier or delivery date. The only figure attached to a new land or undersea vehicle in this part of the request is ¥9.5bn for a small general-purpose UGV.