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“The professed function of the nuclear weapons on each side is to prevent the other side from using their nuclear weapons. If that's all it is, then we've gotta as: how many nuclear weapons do you need to do that?” quote by Carl Sagan
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“The professed function of the nuclear weapons on each side is to prevent the other side from using their nuclear weapons. If that's all it is, then we've gotta as: how many nuclear weapons do you need to do that?”

Carl Sagan

About This Quote

Source Speech: Interview on Nuclear Deterrence, 1990s

Deterrence works only if each side believes the other has enough weapons to cause unacceptable damage; the actual number needed is unclear.

In simple terms: Deterrence needs enough weapons to be credible.

Key Takeaway

Question the actual number needed for credible deterrence.

Themes

security military strategy

Mood

anxious thoughtful

Type

analytical strategic

When to use this quote

  • policy making
  • defense budgeting
  • international negotiations

Key Concepts

deterrence theory mutually assured destruction game theory

Questions to Reflect On

  • How many weapons truly ensure deterrence?
  • What alternatives exist to nuclear deterrence?
A Different Perspective

Limited; fails if credibility is doubted or technology changes.

3.3 out of 5 (4 ratings)

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