The Y-12 National Security Complex is one of the nation’s most important national security assets. Today, it has three primary national security missions that protect the United States and its allies. Those missions include maintaining the U.S. nuclear stockpile, reducing global threats through non-proliferation, and fueling the U.S. Nuclear Navy. The site has evolved to become the complex the nation looks to for support in protecting America’s future, developing innovative solutions in manufacturing technologies, prototyping, safeguards and security, and technical computing.
Originally, Y-12 was constructed in 1943 as part of the World War II-era Manhattan Project. Early missions there included uranium and lithium separations and manufacturing nuclear weapons components.
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