Turkey draws line of marine influence right down the Aegean Sea

By Nektaria Stamouli | 06/18/2025 12:33 PM EDT

The move comes after Greece said it would create marine parks in waters Turkey considers its own.

An aerial view shows the Aegean Sea off the Greek island of Amorgos.

An aerial view shows the Aegean Sea off the Greek island of Amorgos on Feb. 15. Angelos Tzortzinis/AFP via Getty Images

Turkey has claimed half of the Aegean Sea falls under its area of marine influence, escalating a territorial spat with Greece over where to put ocean conservation zones.

The move comes after Greece said it would create marine parks in waters Turkey considers its own.

On Monday, Turkey submitted to UNESCO a so-called maritime spatial plan, an official document that sets the marine areas where activities including fishing, tourism and renewable energy projects can take place. It also underpins the creation of marine protection zones.

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Even though the spatial plan does not define the country’s exclusive economic zone, the map prepared by Ankara University reflects several of Turkey’s long-standing territorial claims, many of which conflict with those of neighboring Greece.

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