Ottoman conquest of Bosnia and Herzegovina

The Ottoman conquest of Bosnia and Herzegovina was a process that started roughly in 1386, when the first Ottoman attacks on the Kingdom of Bosnia took place. In 1451, more than 65 years after its initial attacks, the Ottoman Empire officially established the Bosansko Krajište (Bosnian Frontier), an interim borderland military administrative unit, an Ottoman frontier, in parts of Bosnia and Herzegovina.

Source: Wikipedia — Ottoman conquest of Bosnia and Herzegovina (CC BY-SA 4.0)