"The Case for U.S. Nuclear Weapons in the 21st Century" by Brad Roberts challenges the prevailing viewpoint that the United States should diminish the significance of nuclear weapons in its security strategies and reduce its nuclear arsenal. This book presents a compelling argument in favor of maintaining a robust nuclear deterrent, exploring the changing landscape of global security and the persistent threat posed by nuclear-armed adversaries. It analyzes the strategic importance of nuclear weapons in deterring aggression, safeguarding national interests, and ensuring stability in a volatile world. The book delves into the complexities of nuclear deterrence theory, examining the historical context of nuclear proliferation and the evolution of nuclear doctrines. It addresses the ethical and moral considerations surrounding the use of nuclear weapons, offering a nuanced perspective on the role of nuclear deterrence in a world striving for peace. "The Case for U.S. Nuclear Weapons in the 21st Century" provides a thorough and insightful exploration of this critical issue, challenging readers to reconsider their assumptions about the role of nuclear weapons in the 21st century.