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United States signs the Nuclear Non‑Proliferation Treaty (NPT)

Name: United States signs the Nuclear Non‑Proliferation Treaty (NPT)
Start: 1968-07-01
Location: United States

On July 1, 1968 the United States opened signature to the Treaty on the Non‑Proliferation of Nuclear Weapons, joining the UK and USSR as initial signatories under the Johnson administration.

The NPT established a foundational international framework to limit the spread of nuclear weapons and shaped U.S. arms‑control diplomacy and nonproliferation policy for decades.

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Event Details

Date: July 1, 1968
President: Lyndon B. Johnson
Category: Foreign Policy
Era: Cold War Era

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