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Greece plans extension of territorial waters despite Turkish warning
Published by Global Banking and Finance Review
Posted on January 16, 2026
Last updated: January 16, 2026
Greece Moves to Expand Territorial Waters Amid Turkish Opposition
Greece's Plans for Territorial Expansion
Jan 16 (Reuters) - Greece plans to extend its territorial waters further, including potentially in the Aegean Sea, Foreign Minister George Gerapetritis said on Friday, despite Turkey's long-standing threat of war should Athens take such a step.
Background of the Aegean Dispute
The NATO allies, but historic rivals, have eased tensions in recent years but remain at odds over where their continental shelves begin and end in the Aegean - an area believed to hold significant energy potential and with implications for overflights and airspace.
Recent Developments in Maritime Agreements
Greece has already extended its territorial waters in the Ionian Sea to 12 nautical miles from six, following agreements with Italy, and it has signed a maritime delimitation deal with Egypt in the eastern Mediterranean.
Turkey's Response to Greece's Plans
But it has avoided similar moves in the Aegean, where Ankara objected sharply.
In 1995, the Turkish parliament declared a "casus belli", or cause for war, if Greece unilaterally extended its waters beyond six nautical miles in the Aegean, a position Athens says violates international maritime law.
Answering questions in parliament on Friday, Gerapetritis said further expansion was expected.
"Today, our sovereignty in the Aegean Sea extends to six nautical miles," Gerapetritis said. "As there was an agreement with Egypt, as there was an agreement with Italy, there will also be a (further) extension of the territorial waters."
He didn't specify which maritime areas could be extended.
Turkey's Foreign Ministry was not immediately available for comment.
In July, Greece took another step by unveiling the boundaries of two planned marine parks in the Ionian and Aegean seas. The Aegean park, covering 9,500 square kilometres (3,668 square miles), would initially expand around the southern Cyclades islands, further south of Turkey, according to the maps submitted by Athens. The announcement has drawn objections from Ankara.
Greece says the only issue it is prepared to discuss with Turkey is the demarcation of their maritime zones, including the continental shelf and an exclusive economic zone.
(Reporting by Antonis Pothitos. Aditional reporting Huseyin Hayatsever. Editing by Angeliki Koutantou and Mark Potter)
Frequently Asked Questions about Greece plans extension of territorial waters despite Turkish warning
1What are territorial waters?
Territorial waters are the waters adjacent to a country's coastline, where the country has sovereignty and jurisdiction over the water and the resources within it, typically extending up to 12 nautical miles.
