After the first Soviet nuclear detonation in 1949, Moscow pushed hard to create a more practical and efficient weapon. The answer was RDS-3, a bomb with a mixed uranium-plutonium core that conserved ...
https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!265650~!0#focus ...
26don MSN
The Cold War operation that kept nuclear-armed B-52s minutes from Soviet airspace at all times
The reason why the USAF kept nuclear armed B-52s on continual rotation just outside of Soviet airspace...for nearly a decade.
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