The main theme of the book is the Kosovo problem, which became the reason for the aggression of NATO forces against Yugoslavia in 1999. The author shows a comprehensive picture of events in the Balkans at the end of the last century, indicating their causes and consequences. The book also tells the history of the emergence of the “Albanian question” in the Balkans, while providing an analysis of the new round of the crisis in Kosovo in 1997–1998, which became a harbinger of NATO aggression against Yugoslavia. A special chapter is devoted to the events of March-June 1999, which examines the course and consequences of 78 days of NATO military operations against Yugoslavia, as well as issues of planning the operation, weapons of NATO and the Yugoslav army, stages of bombing, the role of international organizations and the Security Council, and the position of European states , in particular Russia. A special place in the book is occupied by the analysis of the negotiation process in April-June 1999 through the mediation of M. Ahtisaari, S. Talbott and V. S. Chernomyrdin, the surrender of Yugoslavia on humiliating terms for it, the entry of NATO troops into the territory of Kosovo and regime change in Yugoslavia . The political events that followed the NATO aggression are also examined, showing how they affected the position of Yugoslavia, the fate of Kosovo and the negotiation process between Belgrade and Pristina (up to April 2013). The book is intended for a general reader interested in issues of modern politics in the Balkans.