Treaty of the Pruth
The Treaty of the Pruth was signed on the banks of the river Pruth between the Ottoman Empire and the Tsardom of Russia on 21 July 1711, ending the Russo-Turkish War of 1710–1711. The war was a defeat for Russia with the Ottomans victorious; however its conclusion meant the Ottomans withdrew from the Great Northern War, allowing the Russians to concentrate on their other opponents (primarily, Sweden).
The Treaty stipulated the return of Azov to the Ottomans, Taganrog and several Russian fortresses were to be demolished, and the Tsar pledged to stop interfering in the affairs of the Polish-Lithuanian Commonwealth which the Russians increasingly saw as under their sphere of influence.