The imminent maiden flight of China’s Jiu Tian, a large unmanned aerial vehicle (UAV) capable of deploying swarms of up to 100 smaller drones, marks a sharp acceleration in Beijing’s drive to field advanced autonomous combat systems. Developed by the state-owned Aviation Industry Corporation of China (AVIC), the Jiu Tian aircraft has a wingspan of 25 metres and can carry six tonnes of munitions over 7,000 kilometres, according to Chinese defence publications. Western military analysts view the platform as a potential “mothership” that could saturate enemy air defences—a capability that directly challenges the air superiority long enjoyed by the United States and its allies in the Indo-Pacific.

Viewed from Tokyo, the broader pattern of Chinese bomber and missile modernisation is eroding Japan’s defence posture. A Hudson Institute simulation-based report, cited by Japanese media, warns that by the 2030s China’s H-6K, H-6N and future H-20 stealth bombers could launch mass salvos of cruise missiles from relative safety, overwhelming existing Japanese shield systems. The study recommends augmenting Tokyo’s SHIELD drone-defence programme with a layered, long-range air defence capability, including persistent sensors and unmanned platforms, to intercept bombers before weapons release.

Washington and its AUKUS partners are responding with a programme of their own. Defence ministers from the US, UK and Australia announced an accelerated development of autonomous underwater vehicles (AUVs) under the alliance’s Pillar 2, aimed at building a distributed surveillance network to protect critical subsea infrastructure—data cables and energy pipelines—and to monitor Chinese naval movements. The first operational squadrons could deploy as early as next year, with wider integration by 2027. The initiative reflects, in the view of officials from the three countries, a need to match China’s expanding underwater fleet and its suspected capabilities for seabed sabotage.

Parallel civilian robotics demonstrations in China, from humanoid rowers at the Dragon Boat Festival to an intelligent squid-fishing robot on a state research vessel, illustrate the porous boundary between China’s industrial and military automation efforts. Researchers involved in the Tiangong humanoid project highlight advances in water resistance and precision mechanics—technologies equally applicable to amphibious or logistics robots. Meanwhile, Chinese scientists are exploring a sea-skimming hypersonic missile that would fly metres above the surface at multiples of the speed of sound, potentially giving naval planners a tool to evade radar and compress carrier defence reaction times. The research, reported by state media, remains at an early stage, but underscores Beijing’s ambition to field asymmetric anti-access weapons.

The cadence of these disclosures suggests a deliberate signalling effort by Beijing even as the hardware approaches operational status. The Jiu Tian’s first flight is expected this month (June 2025), and the humanoid robots’ public appearance was timed to promote the 2026 World Humanoid Robot Games in Beijing. For allied defence planners, the cumulative effect is a compressed decision timeline: Japan is expected to update its defence strategy in the coming months, while the AUKUS partners are moving to field underwater drones before the decade’s end. Whether these responses can keep pace with an adversary now testing in multiple domains simultaneously remains, in the view of analysts across the Indo-Pacific, the central strategic question.