12 December 2024

Biden Nuclear Weapons Employment Guidance Leaves Nuclear Decisions to Trump

Adam Mount & Hans Kristensen

In early November 2024, the United States released a report describing the fourth revision to its nuclear employment strategy since the end of the Cold War and the third since 2013. The public report summarizes a classified employment guidance reportedly issued by President Joseph Biden in April and was submitted to Congress as required by law (and is sometimes known as the section 491 report after the relevant section of the U.S. Code).

The Nuclear Weapons Employment Planning Guidance of the United States “directly informs DoD’s development of nuclear employment options for consideration by the President in extreme circumstances and establishes requirements that shape U.S. nuclear weapons capabilities and posture.”

The report is notable as the first known effort by a U.S. president to provide guidance on the nuclear employment strategy amid growing concern about China’s dramatic buildup of nuclear forces. The report does not reflect the recommendation of the Congressional Strategic Posture Commission and several other expert groups to expand the size or capability of the nation’s nuclear forces. However, because of an ambiguity in the text about what is required to “deter” multiple adversaries simultaneously, the report is likely to support the narrative that the Biden administration accepts the need for an eventual buildup. Biden’s guidance appears to leave major questions in nuclear strategy to the incoming Trump administration.

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