Treaty of Adrianople, also called Treaty of Edirne, treaty signed in September 1829 ending a war between Russia and the Ottoman Empire, (which was based in modern-day Turkey). During the war, one of a series of conflicts known as the Russo-Turkish Wars, Russia had won significant victories in the Caucasus and the Balkan Peninsula. The war began in 1827 when Russia, allied with Britain and France, intervened in the Greek struggle for independence from the Ottoman Empire, which had started in 1821. Russian ships joined the British and French navies and destroyed the Ottoman fleet at the Battle of Navarino (now Pílos) in 1827. This act started the war with the Ottoman Empire, which the Russians won in 1829.

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