"History of the Peloponnesian War" is a well-known and must-read work of the ancient Greek historian Thucydides. This book is considered one of the patterns of ancient historiography and is one of the most important sources about the events of the Peloponnesian War between Athens and Sparta in the 5th century BC. Thucydides avoids mythologizing and legendizing, trying to present an objective and analytical reflection of events. He describes in detail the causes of the conflict, the strategies and tactics of both sides, military actions and diplomatic negotiations. In the first part of the "History of the Peloponnesian War", Thucydides tells about Athens' entry into the war, alliances and conspiracies, as well as the first military events. The author carefully studied the events, the conduct of the battle and engagement in disagreement with other authors, which allows you to get a unique understanding of the military conflict of antiquity. This book not only allows readers to deepen their knowledge of ancient history, but also encourages reflection on the nature of war, politics, and human relationships. "The History of the Peloponnesian War" is a must-read for all fans of history and classical ancient Greek literature.