The Battle of Banja Luka (Turkish: Banaluka Savaşı, Bosnian: Banjalučki boj) was a battle in which the Ottoman Empire, led by Hekimoğlu Ali Pasha, defeated the Holy Roman Empire. It took place on 4 August 1737 near the Bosnian town of Banja Luka. The Bosnian population was aware that the Austrian forces would invade Bosnia during the war. That's why Hekimoğlu Ali Pasha called a meeting in Travnik with the Bosnian captains to plan the defense. The Ottoman forces where planning the defense without the help of Istanbul..