Owing to their strategic importance in international commerce, politics, and warfare, the Straits have played a significant role in European and world history.
The Turkish Straits are made up of the following waterways; Developments of economic activities threaten marine ecosystems including endemic dolphins and harbour porpoises.
[2] The Straits have had major maritime strategic importance since at least the Mycenaean period, and the narrow crossings between Asia and Europe have provided migration and invasion routes (for Persians, Galatians, and Turks, for example) for even longer.
By the terms of the London Straits Convention concluded on 13 July 1841 between the Great Powers of Europe — Russia, the United Kingdom, France, Austria and Prussia — the "ancient rule" of the Ottoman Empire was re-established by closing the Turkish straits to all warships whatsoever, barring those of the Ottoman Sultan's allies during wartime.
Anglo-French naval forces failed to take control of the Dardanelles (February – March 1915), but in the secret Straits Agreement diplomacy of March – April 1915, the members of the Triple Entente agreed — in the event of victory in World War I — to cede Ottoman territory controlling and overlooking the Straits to the Russian Empire.