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Single Integrated Operational Plan
1961–2003 US nuclear strategy document / From Wikipedia, the free encyclopedia
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The Single Integrated Operational Plan (SIOP) was the United States' general plan for nuclear war from 1961 to 2003. The SIOP gave the President of the United States a range of targeting options, and described launch procedures and target sets against which nuclear weapons would be launched.[1]: 395 The plan integrated the capabilities of the nuclear triad of strategic bombers, land-based intercontinental ballistic missiles (ICBM), and sea-based submarine-launched ballistic missiles (SLBM). The SIOP was a highly classified document, and was one of the most secret and sensitive issues in U.S. national security policy.[2]
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The first SIOP, titled SIOP-62, was finished on 14 December 1960 and implemented on 1 July 1961 (the start of fiscal year 1962).[3]: 296 The SIOP was updated annually until February 2003, when it was replaced by Operations Plan (OPLAN) 8044.[4] Since July 2012, the US nuclear war plan has been OPLAN 8010-12, Strategic Deterrence and Force Employment.[5]