Turkey Legislates Disputed Maritime Claims While European Powers Sign New Defense Deals

Turkey is preparing to turn every contested maritime border in the Aegean and Eastern Mediterranean into domestic law. Instead of pushing back, three of Europe's largest economies spent the past two weeks flying to Ankara to sign defense deals.

The draft "umbrella law" on maritime jurisdiction, expected to reach Turkey's parliament after May 31, codifies the 1995 casus belli threat against Greek territorial water expansion, strips disputed Aegean islands of maritime entitlements by designating them "grey zones," and grants the president authority to declare "special status" maritime zones without further parliamentary approval (Ethnos, Protothema). Turkey has never signed UNCLOS (the UN Convention on the Law of the Sea, the global treaty governing maritime borders), which means Brussels lacks even a shared legal framework to challenge Ankara's claims (Libre).

The Arms Bazaar

Three of Europe's largest economies spent the two weeks before that deadline deepening their defense ties with Turkey.

Belgium sent a 428-person trade delegation led by Queen Mathilde to Ankara and Istanbul from May 10–14. Defense Minister Theo Francken signed nine defense agreements, expressed interest in Turkish drones, and called Turkey "a role model" for European defense modernization (Yeni Safak, BusinessAM). Francken also declared Belgium's support for admitting Turkey into SAFE (Security Action for Europe, the EU's €150 billion defense financing scheme). Greece and Cyprus vetoed Turkish participation in SAFE in October 2025. Belgium now wants that reversed (Daily Sabah).

France's Safran Electronics signed a strategic partnership with Baykar, Turkey's leading drone manufacturer, on May 12 in Istanbul. The deal replaces Canadian-made sensors on the TB2 drone with French targeting systems, freeing Baykar from Western export restrictions (Opex360). Three weeks earlier, Emmanuel Macron had stood in Athens and described France's mutual defense clause with Greece as "intangible," extending France's nuclear umbrella to Greek territory (Le Figaro). Paris, in other words, is simultaneously pledging to defend Greece and arming the country that threatens it.

Germany resumed its Strategic Dialogue with Turkey on May 18, the first such meeting since 2014, while exploring Turkish long-range missiles as a Tomahawk replacement (KAS). Berlin also backs Turkey's inclusion in SAFE.

Why Europe Cannot Respond

The EU has formal tools to address sovereignty challenges against its own members: a targeted sanctions framework created in 2019, the frozen customs union modernization, and pre-accession funding leverage. None of them work against Turkey.

Sanctions require unanimity in the Council (where all 27 governments must agree, meaning any single country can block). Hungary has vetoed Turkey-related measures before. Bulgaria and Romania, dependent on Turkish cooperation in the Black Sea, resist confrontation. The 2016 EU-Turkey migration deal, under which Ankara hosts roughly 3.9 million Syrian refugees, gives Turkey structural leverage over any punitive action: sanctioning Ankara risks triggering a migration crisis at Europe's southeastern border (CER, Verfassungsblog).

Greece and Cyprus retain one instrument: their veto. They blocked Turkey from SAFE and continue freezing customs union talks. The veto prevents benefits but imposes no costs. Turkey lost SAFE access in October 2025; it has not changed a single maritime claim since.

The coalition lobbying to reverse that veto is growing. Belgium, Germany, Italy, Spain, Hungary, and Poland all favor Turkish admission to SAFE, framing it as NATO alliance logic rather than a concession to Ankara. The countries buying Turkish weapons are the same ones pushing to give Turkey access to EU defense money.

The NATO Shield

Athens maintains that Turkey's umbrella law will have "no legal effect" under international law. Greek government spokesperson Pavlos Marinakis called it domestic political theater (Ethnos). But Turkey is constructing a domestic legal authorization for future action in disputed waters, one that won't need further parliamentary approval once passed.

The NATO summit in Ankara on July 7–8 arrives weeks after the law's expected passage. No EU member state will want a public clash with the host country. Turkey legislates its maritime claims, then hosts the alliance that prevents Europe from responding. The summit's timing functions as a shield.