Key takeaways
- Greece, Cyprus, Egypt, Bahrain, the United Arab Emirates and the European Union jointly told the UN on October 26, 2026 that the Turkey Libya maritime deal is null and void.
- Greek Prime Minister Kyriakos Mitsotakis chaired a Security Council debate on maritime security on October 29, 2026 and said no bilateral arrangement can override the international law of the sea.
- The dispute turns on a 2019 memorandum that Libya's eastern parliament ratified in October 2026, a step it had previously refused to take.
- A Greek-owned container ship sank off Bulgaria after a naval drone strike on October 28, 2026, and Mitsotakis used the same debate to call for a global maritime truce.
- No Security Council decision on the Turkey Libya dispute has been reported, and Turkey's response is not covered in the sources reviewed.
The Turkey Libya maritime deal, a 2019 memorandum that sets a sea boundary between the two countries, was challenged at the United Nations Security Council this week. Greek Prime Minister Kyriakos Mitsotakis, who chaired the Council’s maritime security debate on October 29, 2026, said the arrangement cannot override international maritime law. The row matters because it sets two NATO members against each other and bears on gas exploration and shipping routes in the Eastern Mediterranean.
What is the Turkey Libya maritime deal?
The deal is a memorandum of understanding on the delimitation of maritime jurisdiction areas, first signed in 2019 between Turkey and Libya’s government in Tripoli. According to the Greek outlet New Greek TV, the line it draws ignores Greek islands, including Crete. For years the text was treated as a paper claim, because Libya’s rival parliament in the east would not endorse it.
That changed in October 2026. The Rio Times reported that the eastern parliament approved the deal on October 20. Reuters described the approval as a move that drew condemnation from Athens, Egypt, Bahrain and the United Arab Emirates, who see it as a threat to regional security and the international legal order.
Why did Greece raise it at the UN Security Council?
Greece holds the rotating Security Council presidency for October 2026, which gave it a platform. According to the Rio Times, Greece, Egypt, Cyprus, Bahrain, the United Arab Emirates and the European Union delivered a joint statement in New York on October 26 calling the memorandum null and void. Greek Foreign Minister Giorgos Gerapetritis read the text, according to New Greek TV.
The statement said the memorandum has no legal effect on third states and cannot serve as a lawful basis for delimiting maritime zones, according to Greek City Times. It also said Greece remains open to maritime talks with Libya.
On October 29, Mitsotakis chaired the high-level debate on emerging technologies and maritime security. Reuters reported that he told the Council no bilateral arrangement can override the law of the sea, which provides a framework for cooperation and peaceful settlement of disputes. In remarks carried by the Greek Herald, he said: “We cannot allow our seas to become a jungle.”
Speaking separately to Reuters at the UN, Mitsotakis called the agreement “blatantly illegal, null and void” and urged Libya to negotiate directly with Athens. He described the two countries as natural neighbours.
What is at stake for Mediterranean gas?
Reuters reported that Greece has awarded a licence to a consortium led by Chevron to search for gas off Crete since the 2019 deal was signed. Athens has also sought its own agreement with Libya on demarcating their maritime zones. Mitsotakis said he sees no risk that the exploration will be challenged, according to Reuters.
The practical stakes therefore include seabed rights, licensing certainty and the willingness of energy companies to operate in contested waters. The Rio Times noted that investors in Mediterranean gas should watch whether the Council takes up the dispute and whether Greece and Turkey hold talks. That is an analyst’s framing, not an official position.
Turkey’s response is not reflected in the sources reviewed for this article, and its position is therefore not summarised here. The UN General Assembly and Security Council resolutions are also a different matter from the law of the sea itself: the Council has not been reported to adopt any text on the dispute.
How does the Black Sea sinking connect to the maritime security debate?
The same debate took place only hours after a Greek-owned container ship sank off Bulgaria after being struck by naval drones, according to Reuters. It was the latest in a series of strikes on ships in the western Black Sea this month. Reuters said it was not immediately clear who carried out the attack, and linked the incidents to concerns about the effect of Russia’s war in Ukraine on commercial shipping.
Mitsotakis called for a global maritime truce, saying that targeting civilian commercial vessels is unacceptable. He argued that disruption to navigation raises shipping and insurance costs and ultimately reaches consumers. He also said chartering and insurance expenses have risen sharply, and that Greek shipowners would be first to resume Black Sea trade, including from Ukraine, if safe passage were guaranteed.
The debate also covered how artificial intelligence, satellite systems and advanced surveillance could improve maritime security while creating new vulnerabilities, according to the Greek Herald. For related maritime context at the UN, see Intelligence Report’s analysis of piracy off the coast of Somalia and its coverage of the Dnipro rail strike and the sanctions debate.
What does the Turkey Libya maritime deal mean for the UN’s role?
The Security Council has no direct mechanism to void a bilateral maritime memorandum. Disputes over maritime boundaries are normally settled through negotiation or the dispute-settlement procedures of the UN Convention on the Law of the Sea. The diplomatic value of the Council statements lies in building a record of opposition among states and in signalling to companies and courts how many governments reject the text.
According to New Greek TV, the pressure on Ankara has been rising. It reported that the US State Department called the ratification provocative, and that UN Secretary-General António Guterres said on October 26 that the force of law must prevail over the law of force. The outlet did not tie the Secretary-General’s remark explicitly to this dispute, so readers should treat the link with caution.
What to watch
- Turkey’s formal reply: any statement from Ankara or the eastern Libyan authorities in response to the joint declaration.
- October 31, 2026: the end of Greece’s Security Council presidency. The Rio Times also reported that the mandate of the UN Support Mission in Libya expires on that date and that a Council decision is listed.
- Greece Libya talks: whether Tripoli accepts Mitsotakis’s call for direct negotiations on maritime zones.
- Black Sea shipping: further drone strikes on commercial vessels, and any movement toward the truce Mitsotakis proposed.
- Energy licensing: whether work under the Chevron-led licence off Crete proceeds without incident.
Frequently asked questions
What is the Turkey Libya maritime deal?
It is a 2019 memorandum between Turkey and Libya's Tripoli government that sets maritime jurisdiction boundaries in the Mediterranean. According to New Greek TV, it disregards Greek islands including Crete. Libya's eastern parliament approved it in October 2026, according to the Rio Times.
Why does Greece say the Turkey Libya maritime deal is illegal?
Greece and its partners argue the memorandum conflicts with international law and cannot produce legal effects for third states. In a joint statement read at the UN on October 26, 2026, they called it null and void. Mitsotakis added that no bilateral deal can override the law of the sea.
Can the UN Security Council cancel the Turkey Libya maritime deal?
No Council action to cancel it has been reported. Maritime boundary disputes are usually settled through negotiation or the dispute-settlement procedures of the Law of the Sea Convention. Council debates mainly serve to record state positions and raise diplomatic pressure rather than to void bilateral agreements.
Sources
- Exclusive: Greek PM calls Turkey-Libya maritime deal void (Reuters via ThePrint)
- Greek PM calls for global maritime truce after Greek ship sunk in drone attack (Reuters via Al-Monitor)
- Security Council Meets on Emerging Technologies and Maritime Security (UN Photo)
- UN Security Council: Five nations and EU reject Turkey-Libya maritime deal (Parapolitika)
- Greece and Allies Reject Turkey-Libya Maritime Deal as Illegal (Greek City Times)
- At the U.N., a widening coalition lines up against Turkey's deal with Libya (New Greek TV)
- Libya Turkey Sea Deal: NATO Allies Greece, Turkey Split (Rio Times)
- Mitsotakis calls for maritime truce at UN Security Council (Greek Herald)
Top image: Jdforrester / Wikimedia Commons (CC BY 4.0)
This article was produced by the Intelligence Report Desk. Sources are linked below.
