Nuclear Posture, Nonproliferation Policy, and the Spread of Nuclear Weapons

What is it about?

What is the relationship between nuclear postures and nonproliferation policies and the spread of nuclear weapons?

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Why is it important?

Correctly understanding the effects of nuclear posture and policy on both horizontal proliferation (the spread of nuclear weapons to new states) and vertical proliferation (increases in the size and sophistication of nuclear arsenals within existing nuclear states) is a subject of extreme real-world importance. United Nations Secretary General Ban Ki-moon (2008) has identified weapons of mass destruction (WMD) as “one of the gravest challenges facing international peace and security.”