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  • March 1, 1949 - General Curtis LeMay’s first nuclear war plan for the Strategic Air Command envisions attacks on 70 Soviet cities with 133 bombs.
  • March 5, 1970 - The Non-Proliferation Treaty enters into force.
  • March 25, 2014 - Japan hands over an estimated 1,100 pounds of weapons-grade plutonium to the US.
  • March 29, 1951 - Julius and Ethel Rosenberg are convicted at the Federal Courthouse in Foley Square, New York City and sentenced to death for passing information about atomic weapons to the USSR.
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