Iran strike exposes China's South China Sea radar gap
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- Iran reportedly struck and destroyed the US AN/TPY-2 radar at Muwaffaq Salti Air Base in Jordan, located roughly 800 km away — within the radar's stated 3,000 km range — yet the system failed to repel the incoming attack.
- The AN/TPY-2 is an X-band radar (typically a fire-control band) that can also perform long-range surveillance thanks to its large phased-array antenna, high transmit power, and advanced beamforming; only 13 have been built, each costing just under $500 million.
- Radar is an active emitter of electromagnetic radiation and is inherently vulnerable to counterattack unless placed under a protective umbrella of airborne, naval, or ground-based systems — a cooperative engagement capability the Jordan-deployed AN/TPY-2 apparently lacked.
- China has built multi-layered, overlapping ISR and electronic warfare coverage on its Spratly Island outposts since 2022, including mobile ISR/EW systems and antenna arrays across Fiery Cross, Subi, and Mischief reefs, plus new ISR radomes on Subi Reef.
- Despite this investment, China has not linked its airborne, naval, and ground-based radar into a well-networked system-of-systems architecture, meaning its platforms can only operate in isolation and provide minimal support to one another.
- The South China Sea's low-altitude reef geography further constrains radar coverage due to Earth's curvature — even the AN/TPY-2 would max out at roughly 800 km under optimal conditions, per a calculation by Jaganath Sankaran and Bryan Fearey.
- This disjointed architecture gives Southeast Asian claimant states, the US, and its allies an opening to challenge China's "informationized warfare" and electronic warfare capabilities in any SCS conflict.
Why it matters: China has spent years layering sensors onto Spratly reefs but hasn't built the real-time networking that would let them function as one system — the same architectural flaw that let Iran destroy a $500 million US radar operating in isolation 800 km from the launch site. In a South China Sea fight, that seam is exactly where the US, its allies, and Southeast Asian claimants could attack Chinese targeting and command-and-control.
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