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Nuclear Enterprise: Clearer Guidance Could Improve Joint Professional Military Education Nuclear Deterrence Curriculum

GAO-25-107416 Published: Sep 18, 2025. Publicly Released: Sep 18, 2025.
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Fast Facts

The Department of Defense provides professional education courses that build nuclear deterrence expertise among military officers. The courses use a variety of methods to teach nuclear deterrence concepts and focus on monitoring and assessing what officers learn.

However, DOD has not clearly defined the term “nuclear deterrence” in guidance for the courses. Including an explicit definition would help instructors with curriculum and improve officers' shared knowledge and understanding of nuclear deterrence concepts and missions.

We made recommendations that would address this and help improve military education.

Example of Educational Game for Joint Military Officers at the Naval War College

Picture of a game mat and dice used to educate military officers.

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Highlights

What GAO Found

All 23 Joint Professional Military Education (JPME) programs GAO surveyed reported that they include varying degrees of nuclear deterrence content in their intermediate- and senior-level curricula, including incorporating mandatory topics identified in JPME guidance. However, the Department of Defense (DOD) has not explicitly defined nuclear deterrence in the guidance to help JPME programs develop nuclear deterrence content. Including an explicit definition of nuclear deterrence in the guidance could help JPME program officials facilitate a shared understanding of the concept, which would better prepare JPME students for joint assignments related to nuclear deterrence missions.

Selected Defense Schools’ Core Courses at the Intermediate- and Senior-Levels with Nuclear Deterrence Content

College or university

Number of core courses

Number of core courses with nuclear deterrence content

National Defense University

37

12

National Defense University - Joint Forces Staff College

10

7

National Intelligence University

5

1

Army Command and General Staff College

17

5

Army War College

29

6

Naval War College

10

4

Air University

30

19

Marine Corps University

28

9

Space Force - Johns Hopkins University School of Advanced International Studies

13

8

GAO analysis of DOD information provided in response to GAO survey. | GAO-25-107416

In response to DOD requirements, JPME programs have begun developing learning outcomes and objectives for their JPME curricula that include a focus on nuclear topics, such as nuclear deterrence. However, GAO found the time frame for the JPME programs to implement DOD’s outcomes-based military education system is unclear, and the military services had varying understandings of the required time frame for implementation ranging from 2027 to 2029. Setting a specific time frame for full implementation of its outcomes-based military education system could help DOD implement the effort and meet the educational needs of the joint force for contemporary nuclear deterrence.

Why GAO Did This Study

The 2022 Nuclear Posture Review emphasizes the importance of supporting the professional development of service members working in and supporting the nuclear field. Additionally, DOD has recently shifted from a topics-based approach to an outcomes-based approach to monitor and assess student learning for key topics covered in JPME curricula, including nuclear deterrence.

A Senate Armed Services Committee report accompanying a bill for the National Defense Authorization Act for Fiscal Year 2024 included a provision for GAO to assess DOD’s JPME system, including the curriculum involving nuclear deterrence. GAO evaluated, among other things, the extent that JPME programs have 1) included nuclear deterrence content in JPME, and 2) developed learning outcomes that include nuclear deterrence.

For this report, GAO reviewed JPME programs’ curricula and conducted a web-based survey of the education institutions that manage the 23 intermediate- and senior-level JPME programs. GAO also reviewed policy, guidance, and other documents, and interviewed cognizant officials.

Recommendations

GAO is making three recommendations to DOD, including update guidance to explicitly define nuclear deterrence and thereby enhance JPME curricula, and set a specific time frame for full implementation of outcomes-based military education. DOD partially concurred with the three recommendations. GAO continues to believe that these recommendations are warranted, as stated in the report.

Recommendations for Executive Action

Agency Affected Recommendation Status
Department of Defense The Secretary of Defense should ensure that the Chairman of the Joint Chiefs of Staff updates the guidance on enduring and periodic special areas of emphasis to explicitly define nuclear deterrence to aid all intermediate- and senior-level JPME programs' development of JPME curricula with nuclear deterrence content. (Recommendation 1)
Open
DOD partially concurred with this recommendation. DOD concurred that the Chairman of the Joint Chiefs of Staff should update the JPME guidance for enduring special areas of emphasis to define nuclear deterrence. However, DOD did not concur with the aspect of this recommendation related to updating the JPME guidance for periodic special areas of emphasis, noting that periodic special areas of emphasis are subject to a 2-year time-frame restriction. We continue to believe that the recommendation to update the JPME guidance for periodic special areas of emphasis is valid, because this will allow JPME programs to more effectively develop curricula to meet requirements if additional nuclear deterrence-related periodic special areas of emphasis are identified in the future. We will monitor DOD's efforts to fully address this recommendation.
Department of Defense The Secretary of Defense should ensure that the Chairman of the Joint Chiefs of Staff updates the guidance on enduring and periodic special areas of emphasis to require all intermediate- and senior-level JPME programs to incorporate the definition of nuclear deterrence into relevant JPME curricula. (Recommendation 2)
Open
DOD partially concurred with this recommendation. DOD concurred that the Chairman of the Joint Chiefs of Staff should require all intermediate- and senior-level JPME programs to incorporate the definition of nuclear deterrence into relevant JPME curricula for enduring special areas of emphasis. However, DOD did not concur with the aspect of this recommendation related to updating the JPME guidance for periodic special areas of emphasis, noting that periodic special areas of emphasis are subject to a 2-year time-frame restriction. We continue to believe that the recommendation to update the JPME guidance to incorporate the definition of nuclear deterrence for periodic special areas of emphasis is valid, because this will allow JPME programs to more effectively develop curricula to meet requirements if additional nuclear deterrence-related periodic special areas of emphasis are identified in the future. We will monitor DOD's efforts to fully address this recommendation.
Department of Defense The Secretary of Defense should ensure that the Chairman of the Joint Chiefs of Staff sets a specific time frame for implementation—including for conditional and full certification—of the outcomes-based military education system by all intermediate- and senior-level JPME programs. (Recommendation 3)
Open
DOD partially concurred with this recommendation. DOD concurred that the Chairman of the Joint Chiefs of Staff should set a specific time frame for implementation of the outcomes-based military education system. However, DOD did not concur with the aspect of the recommendation related to a connection between setting a specific implementation time frame for the certification of JPME programs and nuclear deterrence learning outcomes. We recognize that DOD is taking actions to update JPME guidance to set a time frame for certification of all intermediate- and senior-level JPME programs, and when we confirm what actions DOD has taken in response to this recommendation, we will provide updated information.

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Educational curriculumEducational standardsMilitary educationMilitary forcesNational defenseNuclear deterrenceNuclear weaponsService schoolsStudentsColleges and universities