The publication of the book is dedicated to the 140th anniversary of the Liberation of Bulgaria from the Ottoman yoke and the restoration of Bulgaria as an independent state. The general purpose of the collection is to study the consequences of Bulgaria being under the influence of the Ottoman Empire, as well as trends and further prospects for the development of the entire Balkan Peninsula. The main topics covered in the articles relate to modern political realities in the Balkans, the specifics and consequences of the Russian-Turkish liberation war, Russian-Bulgarian relations at the present stage, the peculiarities of the development of dialogue between the Balkans and the Eurasian space, relations between the Balkans and the EU, etc.