The
Treaty of the Dardanelles (also known as the
Dardanelles Treaty of Peace, Commerce, and Secret Alliance, the
Treaty of Çanak, the
Treaty of Chanak or ) was concluded between the
Ottoman Empire and the
United Kingdom on 5 January 1809 at
Çanak, Ottoman Empire. The treaty ended the
Anglo-Turkish War. The
Porte restored extensive
British commercial and legal privileges in the empire. The
United Kingdom promised to protect the integrity of the
Ottoman Empire against the
French threat, both with its own fleet and through weapons supplies to
Constantinople. The treaty affirmed the principle that no warships of any power should enter the
Straits of the
Dardanelles and the
Bosporus. The treaty anticipated the
London Straits Convention of 1841, by which the other major powers committed themselves to this same principle.