Story perspectives

China's Giant Submersibles Raise US Security Concerns

4/5/2026

Summary

Story summary

China's unmanned submersibles are the world's largest, with models HSU001 and AJX002 measuring nearly 20 meters.
Satellite imagery has identified a classified variant over 40 meters, raising concern, especially in the United States.
US defense experts warn of vulnerabilities along the West Coast, naming Seattle and Los Angeles as targets, while Yan Zheping, a leading authority on submersibles in China, says ultra-large models focus on regional security and civilian research.

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Story summary

China's unmanned submersibles are the world's largest, with models HSU001 and AJX002 measuring nearly 20 meters.
Satellite imagery has identified a classified variant over 40 meters, raising concern, especially in the United States.
US defense experts warn of vulnerabilities along the West Coast, naming Seattle and Los Angeles as targets, while Yan Zheping, a leading authority on submersibles in China, says ultra-large models focus on regional security and civilian research.