Siege of Varna (July — September 29, 1828) was a war episode during the Russo-Turkish War, 1828-1829. Varna was held by the Ottoman army. The approach to Varna by Russian forces was first attempted on June 28, but the Russian avantgardes were met by significant Turkish forces, and the siege was postponed. In an attempt to desiege Varna, Omer Vryonis Pasha brought a 20,000 army, but was successfully held off. Eventually Varna was taken with 6,900 prisoners and 140 artillery pieces.