Ottomans Crush Serbia at Kosovo: Balkans Fall Open

Both leaders died on the same battlefield, and the myths born from their blood shaped Balkan politics for six centuries. At the Battle of Kosovo on June 28, 1389, Ottoman forces under Sultan Murad I defeated a coalition of Serbian, Bosnian, and other Balkan Christian forces led by Prince Lazar Hrebeljnović, in an engagement that determined the fate of southeastern Europe for the next five hundred years. The battle took place on the Kosovo Polje, the "Field of Blackbirds," near the modern city of Pristina. Murad’s Ottoman army, estimated at 27,000 to 40,000 troops, included elite Janissary infantry and heavy cavalry from across the expanding empire. Lazar’s coalition numbered perhaps 15,000 to 25,000, drawn from Serbian, Bosnian, Albanian, and other Balkan contingents. The battle was the largest military engagement in the region’s history and the first time a major European coalition had assembled specifically to stop Ottoman expansion. Murad was killed before or during the battle, stabbed by a Serbian knight named Miloš Obilić, who either infiltrated the Ottoman camp under false pretenses or fought his way to the sultan during the engagement. Command passed to Murad’s son Bayezid, who completed the victory and had Lazar executed after his capture. The losses on both sides were devastating, but the Ottoman Empire could replace its casualties from its vast territories, while Serbia could not. Kosovo did not immediately end Serbian independence, but it fatally weakened the Serbian state. Serbia became an Ottoman vassal within a decade and was fully absorbed into the empire by 1459. The battle acquired enormous mythological significance in Serbian culture, with Lazar cast as a Christ-like martyr who chose a heavenly kingdom over earthly victory. This mythology was deliberately revived by Serbian nationalists in the twentieth century, most notoriously by Slobodan Milošević in his 1989 speech at the 600th anniversary of the battle, which helped fuel the Yugoslav Wars of the 1990s.