The IRST21 system is an AI-enabled infrared search and tracking sensor that processes thermal data to detect and track aircraft, including stealth targets. Its use involves AI for real-time data analysis and target identification, which qualifies it as an AI system. However, the article does not report any actual harm or incident caused by the system's development or use; rather, it describes a planned military capability enhancement. There is no indication of injury, rights violations, or other harms occurring or having occurred. The article implies a strategic military advantage and potential future use in conflict scenarios, but no direct or indirect harm has yet materialized. Therefore, this event represents a plausible future risk context related to AI-enabled military technology but does not describe an incident or immediate hazard. It is best classified as Complementary Information, providing context on AI system deployment and strategic implications without reporting harm or imminent risk.