The book "The Great Illusion: A Study of the Correlation of Military Power and National Benefit" is written by the famous British publicist and peacemaker Norman Angell. In his work, the author reveals a theory that states that the organized efforts of nations in terms of military training will not bring the expected results in resolving international conflicts and will generally cause more harm than good. Sending important conclusions about the rejection of the immediate threat of military force and the transition to international diplomacy and cooperation in the abstract, Norman Angel caused a great resonance in the field of political studies and geopolitics. This book remains relevant and controversial today, expanding our understanding of the relationship between the billions of dollars spent on weapons and the security of countries around the world.