# Assistant Secretary of Defense for Space Policy

The assistant secretary of defense for space policy (ASD(SP)) is a position in the United States Department of Defense responsible for the overall supervision of DoD policy for space warfighting. The officeholder reports to the Under Secretary of Defense for Policy.

## History

It was created by the Department of Defense on October 29, 2020 after it was mandated by the National Defense Authorization Act of 2019. Previously, there was a deputy assistant secretary for space policy position that reports to the Assistant Secretary of Defense for Homeland Defense and Americas' Security Affairs. Acting Assistant Secretary of Defense for Space Policy Justin T. Johnson was then appointed to perform the duties of the office.

## Organization

* Assistant Secretary of Defense for Space Policy: Vipin Narang (acting)
** Principal Deputy Assistant Secretary of Defense for Space Policy: Vipin Narang
*** Deputy Assistant Secretary of Defense for Cyber Policy: Mieke Eoyang
*** Deputy Assistant Secretary of Defense for Nuclear and Countering Weapons of Mass Destruction Policy: Richard C. Johnson
*** Deputy Assistant Secretary of Defense for Space and Missile Defense: John D. Hill
*** Deputy Principal Cyber Advisor: Brig Gen Terrence A. Adams, USAF

## List of assistant secretaries of defense for space policy

| No. | Assistant Secretary | Assistant Secretary | Term | Term | Term | Ref. |
| No. | Portrait | Name | Took office | Left office | Term length | Ref. |
| Assistant Secretary of Defense for Space Policy |||||||
| - | | Justin T. Johnson Acting | October 29, 2020 | January 20, 2021 | 83 days | |
| - | | John D. Hill Acting | January 20, 2021 | March 7, 2022 | 1 year, 43 days | |
| 1 | | John F. Plumb (born 1970/1971) | March 7, 2022 | May 20, 2024 | 2 years, 77 days | |
| - | | Vipin Narang Acting | May 20, 2024 | August 12, 2024 | 84 days | - |
| - | | John D. Hill Acting | August 12, 2024 | Incumbent | 165 days | |

## List of principal deputy assistant secretaries of defense for space policy

| No. | PDASD | PDASD | Term | Term | Term | Ref. |
| No. | Portrait | Name | Took office | Left office | Term length | Ref. |
| - | | Gregory H. Pejic Acting | October 29, 2020 | ~December 20, 2020 | ~52 days | |
| 1 | | Gregory H. Pejic | ~December 20, 2020 | January 20, 2021 | ~31 days | |
| 2 | | Vipin Narang | March 29, 2022 | August 12, 2024 | 2 years, 136 days | |
| - | | John D. Hill Acting | August 12, 2024 | January 20, 2025 | 161 days | |
| - | | Andrea Yaffe Acting | January 20, 2025 | | 4 days | - |

## List of deputy assistant secretaries of defense for space policy

| No. | Deputy Assistant Secretary | Deputy Assistant Secretary | Term | Term | Term | Ref. |
| No. | Portrait | Name | Took office | Left office | Term length | Ref. |
| Deputy Assistant Secretary of Defense for Space Policy |||||||
| 1 | | Gregory L. Schulte | March 2010 | ~August 2012 | ~2 years, 153 days | |
| - | | John F. Plumb Acting | ~August 2012 | ~March 2013 | ~212 days | |
| 2 | | Douglas L. Loverro | March 2013 | January 20, 2017 | ~3 years, 311 days | |
| 3 | | Stephen L. Kitay | ~June 13, 2017 | August 21, 2020 | ~3 years, 69 days | |
| - | | Justin T. Johnson Acting | August 21, 2020 | October 29, 2020 | 69 days | |