""Manhattan Project"" explores the United States' race to develop nuclear weapons during World War II, a feat accomplished through unprecedented scientific collaboration and industrial effort. The book delves into not only the physics that made the atomic bomb possible but also the immense engineering undertaking required to enrich uranium and produce plutonium at sites like Oak Ridge and Hanford. Readers will gain insight into how figures like Oppenheimer and Fermi contributed to this pivotal moment in science history and military affairs. The book uniquely balances scientific details with the ethical and strategic implications of using such destructive power. It examines the debates surrounding the bombings of Hiroshima and Nagasaki, acknowledging the complex moral compromises involved. Understanding the Manhattan Project is crucial, as it highlights the intersection of science, politics, and ethics in warfare and arms control. Structured in three parts, the book begins with the scientific principles of nuclear fission, progresses through the establishment and operation of key project sites, and concludes with an analysis of the decision to use atomic bombs and their lasting global consequences. This approach provides a comprehensive view, making it valuable for those interested in military history, science history, and the ongoing challenges of nuclear proliferation.