Ending Nuclear Tests, Abolishing Nuclear Weapons
BY RAY ACHESON
The Castle Bravo nuclear test, the detonation of the most powerful thermonuclear device ever tested by the United States. Image courtesy of the National Oceanic and Atmosphere Administration.
In 1945, the United States (US) government built and detonated the first nuclear weapon in the deserts of New Mexico. The fallout from that test spread to 46 US states, Canada, and Mexico. Three weeks later, the US government dropped two atomic bombs on Hiroshima and Nagasaki in Japan, killing hundreds of thousands of people and devastating both cities, and leaving a radioactive legacy for generations. Since then, more than 2000 nuclear “tests” have been conducted worldwide by nine nuclear-armed states, causing widespread canc...










