Greece moves to overwrite Turkey’s Libya deal

The Eastern Mediterranean's most consequential boundary dispute plays out through coordinates on a nautical chart, not troops on a border. On 27 July, Greek and Libyan delegations completed a third round of technical talks in Athens, comparing legal arguments over where their maritime zones meet south of Crete (ERT, ProtoThema). The sessions are procedural. The ambition is not. Athens wants to agree a maritime boundary with Libya that undercuts the 2019 Turkey-Libya memorandum, the deal that drew Greek islands off the Eastern Mediterranean map.

The strategy has a clear logic and an equally clear weakness: it depends on a partner that can barely speak with one voice.

The memorandum Crete can't afford

In November 2019, Turkey and Libya's Tripoli-based government signed a memorandum treating their coasts as directly opposite. The boundary they drew gave Greek islands, above all Crete, nearly zero maritime weight. Under the UN Convention on the Law of the Sea (UNCLOS, the main treaty governing maritime boundaries), islands normally generate the same offshore zones as mainland coastline unless they are uninhabitable rocks (UNCLOS). Crete is large and permanently inhabited. The memorandum treats it as if it barely exists.

EU leaders rejected the deal within weeks. The European Council (where heads of state set EU direction) declared it infringed third states' sovereign rights and could not bind countries that weren't party to it (European Council). But political rejection without a competing agreement left the memorandum in Turkish and Libyan diplomatic files, still shaping how Ankara claims jurisdiction to the south.

Greece's strategy and its weakest link

Greece's counter-move is patient: pull Libya into a separate bilateral boundary south of Crete. If the two countries agree on their own line, it becomes much harder for Ankara to present the 2019 memorandum as the only deal on the table.

The catch sits inside Libya. The country has been split between rival governments since 2014. The eastern-based House of Representatives reportedly never ratified the 2019 memorandum with Turkey, leaving its domestic legal standing contested before international law even enters the picture (Ahram Weekly). Greece needs those rival institutions to stay engaged long enough to produce coordinates that a treaty or a future case at the International Court of Justice could actually use.

A joint technical committee held a second round in Tripoli on 10 June before convening in Athens for the third. According to the Greek readout, the talks have not yet produced agreed coordinates or a draft agreement (ERT).

Turkey's own legal position is narrower than the public debate suggests. Ankara does not claim islands never count. It argues that international courts have sometimes reduced islands' maritime effect when full weight would produce disproportionate results, a position with real support in case law (ICJ Libya/Malta, Daily Sabah). But reducing an island's effect and erasing it are different legal operations. The 2019 memorandum sits closer to erasure.

Why Rome and Nicosia are watching

Italy reads Libya through energy and migration. The GreenStream pipeline links Libyan gas fields to Sicily, and Italian Defence Minister Crosetto and Foreign Minister Tajani have framed southern Mediterranean stability as a direct economic concern (Formiche).

Cyprus has the sharpest exposure. European energy companies are developing offshore gas fields in Cypriot waters, with production targeted from 2028 (Phileleftheros). If Turkey's map gains legitimacy in one part of the Eastern Mediterranean, Nicosia's offshore claims become easier to challenge in another. Turkey has backed the memorandum with military presence in Libya, making the 2019 deal harder to overwrite on paper alone (Les Clés du Moyen-Orient).

Athens, which is simultaneously blocking the EU's latest Russia sanctions package to protect its shipping sector, is betting that slow, technical map-making can outweigh a political memorandum. For now, Greece has a legal strategy whose weakest link is the state it needs as partner.