0880/25

SÉCURITÉ

Advisory: possible military activity in territorial waters of specified Aegean islands

ActiveReceived 17 Sept 2025, 00:00 UTC

Warning text

NAVTEX MESSAGE NUMBER : 0880/25 AEGEAN SEA - MEDITERRANEAN SEA 1. THASOS, PSARA, SAMOTHRACE, LEMNOS, LESBOS, CHIOS, IKARIA, SAMOS, ASTYPAILA, RHODES, KARPATHOS, KASOS, LEROS, NISYROS, KALYMNOS, PATMOS, LIPSI, SYMI, KOS AND CASTELLORIZO (MEIS) ISLANDS ARE IN PERMANENT DEMILITARIZED STATUS IN ACCORDANCE WITH THE 1914 SIX GREAT POWERS DECISION, THE 1923 LAUSANNE PEACE TREATY AND THE 1947 PARIS PEACE TREATY. THEREFORE, NO MILITARY ACTIVITIES SHOULD BE CARRIED OUT IN THE TERRITORIAL WATERS OF THE SAID ISLANDS. 2. HOWEVER, FROM TIME TO TIME, NAVIGATIONAL WARNINGS ARE ISSUED BY SOME STATIONS CONTRARY TO INTERNATIONAL TREATIES, CONCERNING THE CONDUCT OF MILITARY ACTIVITIES IN AREAS INCLUDING THE TERRITORIAL WATERS OF THE SAID ISLANDS, WHICH MAY ENDANGER NAVIGATIONAL SAFETY. 3. CAUTION SHOULD BE EXERCISED AGAINST SUCH ACTIVITIES WHICH CREATE AN UNLAWFUL SITUATION AND MAY ENDANGER NAVIGATIONAL SAFETY.

Analysis

Active

Turkey reminds mariners that a list of Aegean islands are permanently demilitarized under 1914, 1923 and 1947 treaties and that no military activities should occur in their territorial waters. It warns some stations occasionally issue navigational warnings announcing military activities that include these waters. Mariners are advised to be cautious of such unlawful activities which may endanger navigation.

Exercise caution; be aware that military activities may be announced and could endanger navigation. Navigate with caution and maintain good look-out.

Type: Military exercise · severity moderate
Feed: Military exercises and firingAll warnings of this kind on the map, or as an API feed.
Location: Aegean Sea - Mediterranean Sea: Thasos, Psara, Samothrace, Lemnos, Lesbos, Chios, Ikaria, Samos, Astypalaia, Rhodes, Karpathos, Kasos, Leros, Nisyros, Kalymnos, Patmos, Lipsi, Symi, Kos, Castellorizo (Meis)
Hazards: military activities in territorial waters, navigation endangered by unlawful activities

Worked out automatically from the warning text on 31 Oct 2026, 06:10 UTC. It can be wrong: the official warning text is the authority.

KeywordsPSA

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