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## Overview China's 2026 Chengdu Defence Technology Industry Expo, held in mid-April 2026, showcased several advanced military technology systems, including AI-enabled autonomous underwater vehicles (AUVs) and robot dogs (South China Morning Post, May 2026). ## Key Systems Unveiled ### Autonomous Underwater Vehicles The most noteworthy exhibit involved autonomous underwater vehicles designed to be launched from submarines via 260mm or 533mm torpedo tubes (South China Morning Post, May 2026). These vessels are primarily designed to conduct high-precision deep-ocean surveys and seabed mapping. An AI-enabled underwater system capable of neutralizing mines was also featured. ### Robot Dogs Robot dogs featured prominently at the expo, consistent with a broader global trend of deploying quadruped robots in military and security applications. ## Significance **Anti-mine capability:** The AI-enabled underwater mine-neutralization system has direct relevance to the ongoing Strait of Hormuz crisis, where Iran's lost mines have been documented as a shipping risk. Nations seeking to clear contested maritime zones would have interest in such capability. **Submarine-launched AUVs:** The ability to deploy survey and mapping drones from standard torpedo tube dimensions suggests integration with existing submarine fleets without requiring platform modification. **Dual-use potential:** Deep-ocean survey capability has both civilian (resource mapping, infrastructure assessment) and military (intelligence gathering, cable location) applications. ## Context The expo occurred against the backdrop of China's 2026 defense budget of 1.94 trillion yuan and intensifying US-China competition in military AI. The Trump-Xi summit agenda reportedly includes military AI governance discussions, making public demonstrations of autonomous military systems diplomatically significant.