6 August 2025

US going all in on sea drones to deter Taiwan war

Gabriel Honrada

The US is betting on swarming unmanned surface vessels (USVs) to harass China and delay a Taiwan or South China Sea conflict, wagering that drones and allied self‑defense can deter Beijing without triggering a war. By all accounts, the US Navy is moving fast in that direction. Breaking Defense reported in July 2025 that the service has issued a formal call for industry proposals to rapidly prototype modular USVs, following an industry day earlier this summer.

Led by the US Navy’s unmanned maritime systems office, the solicitation seeks designs that can carry containerized payloads, integrate with existing naval assets and be fielded within 18 months of contract award. It identifies three vessel concepts, prioritizing one capable of carrying two 40‑foot containers—each weighing 36.3 metric tons and drawing 75 kilowatts—over 2,500 nautical miles at 25 knots in NATO Sea State 4.

The US Navy emphasizes affordability and scalability, favoring commercial‑standard, non‑exquisite designs to enable construction across multiple shipyards. Though no award timeline has been specified, the service plans to use Other Transaction Authorities (OTAs) to accelerate the contracting process. Rear Admiral William Daly has highlighted the need for a simplified, mass‑producible USV, moving away from earlier bespoke Medium and Large USV programs. The shift underscores the US Navy’s urgency to operationalize distributed lethality and containerized modular warfare on affordable, scalable platforms.

US planners see USVs as tools to delay or disrupt Chinese operations in a Taiwan contingency. Admiral Samuel Paparo told The Washington Post in June 2024 that the US has adopted a “hellscape” US strategy that aims to saturate the Taiwan Strait with thousands of unmanned systems—submarines, surface vessels, and aerial drones— the moment China’s invasion fleet mobilizes. Paparo said this mass deployment is designed to harass and paralyze People’s Liberation Army (PLA) forces for about a month, creating a window for US, Taiwanese and allied forces to mobilize a full defense and deny Beijing a rapid “fait accompli.”

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