Question

What was a key effort to limit the spread of nuclear weapons during the Cold War?
The Nuclear Non-Proliferation Treaty
The Truman Doctrine
The Strategic Defense Initiative

Answer 1

A key effort to limit the spread of nuclear weapons during the Cold War was the **Nuclear Non-Proliferation Treaty (NPT)**. The NPT, which was opened for signature in 1968 and entered into force in 1970, aimed to prevent the spread of nuclear weapons and to promote peaceful uses of nuclear energy, while also working towards global disarmament. The treaty established a framework for cooperation between nuclear-armed states and non-nuclear-armed states, making it one of the central agreements aimed at controlling nuclear proliferation during the Cold War.