Aegean Tension IndexA daily escalation/de-escalation index for Cyprus, Greece and Türkiye across the Aegean and Eastern Mediterranean, from open-source indicators & warnings. A heuristic, not a forecast.

What changed · 16 Oct 2026

Tension stayed at routine-to-elevated levels. Greek authorities reported four national-airspace violations and eleven Athens FIR infringements by Turkish UAVs on 15 October, with no mock dogfights. The main development was economic: Cyprus said a long-delayed Great Sea Interconnector cable-survey NAVTEX will be issued by end of October, reviving a dispute Türkiye says requires its prior approval. Diplomatic friction stayed confined to intra-Cypriot politics.

• Military posture: 4/10 · Greek authorities reported 6 Turkish UAVs causing 4 national-airspace violations and 11 Athens FIR infringements on 15 Oct; General Staff said no mock dogfights occurred.
• Diplomatic / political: 4/10 · Friction stayed intra-Cypriot: Turkish Cypriot Nicosia mayor Harmanci said Christodoulides has become a prisoner of rising ultranationalism in a forum-title dispute.
• Economic / informational: 5/10 · Cyprus's energy minister said a NAVTEX for Great Sea Interconnector seabed surveys near Crete will issue by end of October; a Turkish academic repeated Ankara's permission demand.
• EW / SIGINT: 3/10 · No GPS/GNSS jamming, spoofing, or radar/comms interference linked to Greece, Cyprus or Türkiye was reported in the past 24 hours.

Sources

• e-Makedonia: New Turkish provocations in the Aegean - 4 violations of national airspace by unmanned aircraft (Greek)
• Cyprus Mail: Great Sea Interconnector navtex will be issued by end of month
• ProtoThema English: How the path was cleared for work to resume on the Greece-Cyprus cable - France's moves and the Turkey backdrop
• Cyprus Mail: Harmanci - Christodoulides has become a prisoner of rising ultranationalism
• To Vima: Turkey - We Won't Allow Greece-Cyprus Cable Without Our Approval
• Greek Reporter: Cyprus Reports 659 Turkish Air and Naval Violations to UN
• Euronews: Turkiye ile gerilime yol acan Yunanistan-Kibris elektrik projesinde yeni adim (Turkish)
• Calibration gap

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