maritime incidenteast china seamedium impact04/03/2026, 10:00:00Confidence 83/100
Japan Coast Guard logs multi-day China Coast Guard presence near Senkaku Islands
Japan Coast Guard reported China Coast Guard vessels operating in the contiguous zone around the Senkaku Islands for more than 48 hours.
Location: East China Sea (Senkaku / Diaoyu)
Impact analysis
What we know (verified)
- —JCG published patrol observations with vessel counts and duration
- —Tokyo lodged a diplomatic protest citing Japanese administration of the islands
Who claims what
- —Chinese MFA called the patrol routine law enforcement — contested by Japan
fishingshippingenergydefense
Our assessment
Recurring grey-zone pattern with limited immediate trade impact. Watch for fishing-season coincidence and Japanese domestic political response.