Nuclear weapons have not been used in anger since the United States dropped atomic bombs on Hiroshima and Nagasaki in August 1945. Yet even after the Cold War, the Bomb is still the greatest threat facing humankind. As President Bill Clinton's first secretary of defense, Les Aspin, put it, "The Cold War is over, the Soviet Union is no more. But the post-Cold War world is decidedly not post-nuclear". For all the efforts to reduce nuclear stockpiles, the Bomb is here to stay.
This Very Short Introduction looks at the science of nuclear weapons and how they differ from conventional weapons. Tracing the story of the nuclear bomb, Joseph Siracusa chronicles the race to acquire the H-bomb, a thermonuclear weapon with revolutionary implications; and the history of early arms control, nuclear deterrence, and nonproliferation. He also tracks the development of nuclear weapons from the origins of the Cold War in 1945 to the end of Moscow-dominated Communism in 1991, and examines the promise and prospect of missile defense, including Ronald Reagan's "Star Wars" and George W. Bush's National Missile Defense. This third edition includes a new chapter on the development of nuclear weapons and the policies they have generated since the end of the Cold War.

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