"Weapons of War" explores how technology has continually reshaped military history and modern warfare. The book examines the evolution of weapons technology, from early firearms to today's autonomous systems, highlighting how these advancements dramatically influence military strategy and geopolitics. One key insight is how technological innovation, such as the development of precision firearms, has consistently altered the balance of power and forced societies to adapt. The book approaches this complex topic by providing essential background on the physics of ballistics and the engineering behind weapon design, making it accessible to non-experts. It emphasizes the progression of firearms, the rise of mechanized warfare through tanks and aircraft, and the emergence of drones and AI in warfare. Organized into three parts, the book first introduces basic weapon principles, then examines the Industrial Revolution's impact, and concludes with an analysis of 20th and 21st-century advancements, including nuclear weapons and arms control.