October 14, 2025

Montreux Convention

  • Turkish Defence ministry has stated that Ankara intends to continue to faithfully comply with the Montreux Convention on the Non-Admission of warships of Non-Black Sea countries to the Black Sea through the Bosphorus and the Dardanelles.

 ABOUT MONTREUX CONVENTION

  • The Montreux Convention Regarding the Regime of the Straits or simply known as the Montreux Convention is an international agreement that governs the use of the Bosphorus and Dardanelles straits in Turkey.
  • The international agreementwas signed by Australia, Bulgaria, France, Greece, Japan, Romania, Yugoslavia, the United Kingdom, the Soviet Union and Turkey and has been in effect since November 1936.
  • According to it, Turkey has control over the Turkish Straits.
  • In the event of a war, the pact gives Turkey the right to regulate the transit of naval warships and to block the straits to warships belonging to the countries involved in the conflict.
  • Merchant vessels enjoy freedom of passage through the Turkish Straits , while passages of vessels of war are subject to some restrictions that vary depending on whether these vessels belong to the Black Sea littoral States or not.
  • The Bosporus and Dardanelles straits, also known as the Turkish Straits or the Black Sea Straits, connect the Aegean Sea and the Black Sea via the Sea of Marmara.

It is the only passage through which the Black Sea ports can access the Mediterranean and beyond.

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