The Battle of Sofia (Bulgarian: Битката при София) was the culmination of Russian General Iosif Gurko's Western Squad for the defeat of the Orhaniye army in the Russo-Turkish War (1877–1878).

Western group Gurko passed to operation Orhaniye to defeat the Ottoman army, according to the plan for final action in the war.

General Iosif Gurko said: "Probably we would not have crossed the mountain, were it not for these silent and strong Bulgarians who brought us bread and hot food.

Part of the forces of the West group Gurko with 20,000 soldiers and 46 cannons commanded by Major General Otto Rauch were directed into Sofia field.

The column of Major General Rauch captured the bridge at Chardakli farm (today, of the Tsarigradsko Shose over the Iskar river near Vrana Palace) and blocked the retreat route from Sofia towards Plovdiv.

Faced with a real threat of encirclement, Osman Nuri Pasha started a fast retreat in the direction of Pernik - Radomir, abandoning on the road 6000 wounded and sick soldiers.