Nuclear Tests Banned: US, UK, USSR Sign Test Ban Treaty
Rising fears over radioactive fallout from massive hydrogen and thermonuclear tests forced the United States, United Kingdom, and Soviet Union to strip disarmament demands from their negotiations and sign the Limited Test Ban Treaty in Moscow. This agreement prohibited nuclear explosions in the atmosphere, outer space, and underwater, effectively ending the era of open-air testing that had sparked global health anxieties since 1952.
August 5, 1963
63 years ago
Key Figures & Places
What Else Happened on August 5
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