Turkey Pushes Parks Into Dispute

Turkey has moved two new marine parks onto one of Europe’s most sensitive maps. On paper, the decrees published on Saturday are conservation measures. In the Aegean, paper rarely stays innocent for long.

A marine park does not create sovereignty under international law. The issue is whether Ankara now uses park rules, permits and patrols to build practical authority in waters whose legal status Greece contests.

Two parks, two pressure points

President Recep Tayyip Erdogan has signed decrees creating two marine national parks. The first, the Fethiye-Kaş Marine National Park, lies between Turkey’s south-western coast and waters near the Greek islands of Kastellorizo and Rhodes. The second, the North Aegean Marine National Park, covers roughly 1,742 km² off the Turkish coast near Lemnos and Samothrace (BloombergHT, Harita Haber).

Both measures appeared in Turkey’s Official Gazette on 16 August with coordinate annexes and boundary maps (Hürriyet). That matters because these are formal legal instruments, not a weekend burst of rhetoric. They give the areas domestic conservation status, draw boundaries and create the machinery for permits, patrols and restrictions.

That is ordinary enough where a state already has jurisdiction. The argument begins at the waterline: where does Turkish jurisdiction end?

Greece says the parks push beyond Turkish territorial waters, the strip of sea where a coastal state has sovereignty, normally up to 12 nautical miles. Athens argues they enter areas where Greece holds continental-shelf rights over the seabed and its resources. The Greek foreign ministry called the decrees illegal and said they "create no fait accompli" (Kathimerini, ProtoThema).

Turkey’s position has been carried through semi-official press rather than a verified foreign ministry statement. The line is that the parks safeguard Turkish maritime rights (Daily Sabah).

The cartographic logic

The geography follows a familiar Turkish argument: Greek islands close to Turkey’s coast should generate little or no maritime zone of their own. That is the quiet engine behind the dispute.

In the south, the Fethiye-Kaş corridor echoes the logic of the 2019 Turkey-Libya maritime deal, which drew Turkish and Libyan claims across waters Greece says its islands help generate. Athens has spent three rounds of Greece-Libya talks trying to blunt that agreement (To Brief).

In the north, placing a Turkish administrative zone between Lemnos and Samothrace amounts to a claim to manage waters Greece regards as its own continental shelf or open sea (Kathimerini).

The exact annexed coordinates have not been independently plotted, so the precise overlap cannot yet be confirmed. But the broad geography is plain enough: both parks sit where Greek and Turkish claims meet.

Continental-shelf rights are not created by whoever files the newest map. In its North Sea Continental Shelf ruling, the International Court of Justice held that such rights exist automatically from a state’s coastline, not because of later administrative acts (ICJ). Turkey is not a party to UNCLOS, the UN Convention on the Law of the Sea, but many of its central principles are treated as customary international law, binding beyond the treaty’s membership (UNCLOS).

A conservation label cannot get around that. A marine park can regulate fishing and require permits where a state already has lawful authority. It cannot create that authority by naming the water a park.

Greece alone, Europe quiet

So far, no other EU government has publicly responded to the decrees. France has offered the closest indirect signal: Le Figaro and Opex360 reported an increase this month in Turkish drone and aircraft violations of Greek airspace, placing the parks inside a broader pattern of Aegean pressure (Le Figaro, Opex360).

The silence is not neutral. The parks touch the claimed continental shelf of an EU member state and part of the bloc’s external maritime frontier. Athens says it will raise the matter at EU and NATO level. That gives Greece forums, but not a court.

The EU can issue political statements and apply diplomatic pressure. NATO can try to keep two allies from colliding. Neither can settle a maritime boundary.

The real test comes when Turkey acts on the decrees. If Ankara starts issuing permits, sending patrols or demanding authorisation from vessels in waters international law places outside Turkish control, the parks become more than a conservation measure. They become instructions that ships and officials are expected to obey.

For now, Greece is treating this as a European border issue. The rest of Europe is allowing it to remain a Greek-Turkish dispute.