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The Nuclear-Armed States

A survey of the nine countries that possess nuclear weapons, their arsenals, and their strategic doctrines.

The Nuclear Club

Nine states are known or believed to possess nuclear weapons:

The NPT Five (legally recognized nuclear-weapon states):

  • United States (~5,500 warheads): First nuclear weapon (1945). Largest deployed arsenal alongside Russia.
  • Russia (~6,250 warheads): Inherited the Soviet arsenal. Largest total stockpile.
  • United Kingdom (~225 warheads): Relies on submarine-based Trident missiles.
  • France (~290 warheads): Independent 'force de frappe' as a cornerstone of national defense.
  • China (~350 warheads): Historically small arsenal, now rapidly expanding and modernizing.

Non-NPT nuclear states:

  • India (~160 warheads): Tested in 1974 and 1998. No-first-use doctrine.
  • Pakistan (~170 warheads): Tested in 1998 in response to India. No no-first-use pledge; weapons seen as deterring India's larger conventional military.
  • Israel (~90 warheads, estimated): Maintains nuclear ambiguity. Has never confirmed or denied.
  • North Korea (~40-50 warheads, estimated): Withdrew from NPT in 2003. Conducted six nuclear tests (2006-2017).
The Nuclear-Armed States | Model Diplomat