Event Brief
Japanese Global Hawk crashes into Sea of Japan
By The BriefBrief · Sources (3)
Filed: Sep 17, 2026 at 6:00 AM ET
Summary: A Japanese RQ-4B Block 30i Global Hawk drone nosedived into the Sea of Japan on Sept. 15, after the Japan Air Self-Defense Force lost contact at 12:55 p.m. and then lost its radar signature three minutes later over international waters. The crash reduced Japan’s Global Hawk fleet by about one-third.
WHO: Japan Air Self-Defense Force (JASDF) 502nd Squadron
WHAT: A JASDF Global Hawk drone lost contact and radar signature, then crashed into the Sea of Japan.
WHEN: Sep 15, 2026
WHERE: Sea of Japan (over international waters)
WHY: The cause of the crash has not been reported.
How this brief is built: The BriefBrief uses multi-source information fusion to correlate reporting across sources, identify related developments, and continuously update a structured WHO, WHAT, WHEN, WHERE and WHY event picture. Pattern arcs, source analysis, and velocity indicators provide deeper analysis in our MI Console.
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