The book "The First Book of the Peloponnesian War" is an epic chronicle of the war between Athens and Sparta in the years 431-421 BC. The author of this outstanding work is the ancient Greek historian and strategist Thucydides. In his book, he describes in detail the circumstances of the conflict, the strategies of both sides, the battles, diplomatic maneuvers and the social consequences of the war. The work of Thucydides is considered an important source for learning the political and military history of Greece in the 5th century BC. His unparalleled skill as a historian and military strategist makes this book a must for any fan of ancient world history.