The Battle of Monastir took place near the town of Bitola, Macedonia (then known as Monastir) during the First Balkan War, from 16 to 19 November 1912. As an ongoing part of the Balkan Wars, the Ottoman Vardar Army retreated from the defeat at Kumanovo and regrouped around Bitola. The Serbian 1st Army, marching for Bitola, encountered heavy Ottoman artillery fire and had to wait for its own artillery to arrive. On 18 November, following the destruction of the Ottoman artillery by Serbian artillery, the Serbian right flank pushed through the Vardar Army. The Serbs then entered Bitola on 19 November. With the conquest of Bitola the Serbs controlled southwestern Macedonia, including the symbolically important town of Ohrid.