Assistant Secretary of Defense for Indo-Pacific Security Affairs

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Assistant Secretary of Defense for Indo-Pacific Security Affairs

The Assistant Secretary of Defense for Indo-Pacific Security Affairs, or ASD (IPSA), is the principal advisor to the Under Secretary of Defense for Policy (USD(P)) and the Secretary of Defense on international security strategy and policy on issues of DoD interest that relate to the governments and defense establishments of the nations and international organizations within the Indo-Pacific region. It primarily includes the entire region from India to Japan, and the region where ASEAN is located.[1] The position was originally titled Assistant Secretary of Defense for Asian and Pacific Security Affairs but was renamed by the first Trump Administration alongside the renaming of the United States Indo-Pacific Command.[2]

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Assistant Secretary of Defense for Indo-Pacific Security Affairs
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Seal of the Assistant Secretary of Defense for Indo-Pacific Security Affairs
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Flag of an Assistant Secretary of Defense
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Incumbent
John Noh
Acting 
since January 22, 2025
Under Secretary of Defense for Policy
AppointerThe President
with Senate advice and consent
Term lengthNo fixed term
Inaugural holderJames J. Shinn
DeputyPrincipal Deputy Assistant Secretary of Defense
WebsiteOfficial website
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Office holders

More information Name, Tenure ...
Assistant Secretaries of Defense (Asian and Pacific Security Affairs/Indo-Pacific Security Affairs)[3][4]
Name Tenure SecDef(s) served under President(s) served under
James J. ShinnDecember 19, 2007 – November 14, 2008[5]Robert M. GatesGeorge W. Bush
Mitchell Shivers (Acting)[6]November 14, 2008 – January 20, 2009
Derek Mitchell (Acting)April 1, 2009 – May 12, 2009Robert M. GatesBarack Obama
Lieutenant General Wallace "Chip" Gregson (Ret.)May 13, 2009[7] – April 1, 2011Robert M. Gates
Derek Mitchell (Acting)April 2, 2011 – August 12, 2011Robert M. Gates
Leon Panetta
Peter R. Lavoy (Acting)August 15, 2011 – May 8, 2012Leon Panetta
Mark LippertMay 9, 2012 – April 24, 2013Leon Panetta
Chuck Hagel
Peter R. Lavoy (Acting)May 1, 2013 – January 10, 2014Chuck Hagel
David B. ShearJuly 17, 2014 – June 10, 2016Chuck Hagel
Ashton Carter
Kelly E. Magsamen (Acting)June 10, 2016 – January 20, 2017Ashton Carter
David F. Helvey (Acting)January 20, 2017 – December 29, 2017James MattisDonald Trump
Randall SchriverDecember 29, 2017 – December 31, 2019James Mattis
Mark Esper
David F. Helvey (Acting)January 1, 2020 – July 2021Mark Esper
Lloyd AustinJoe Biden
Kenneth Handelman (acting)[8][9] July 2021 - July 25, 2021 Lloyd Austin
Ely Ratner[10] July 25, 2021 – January 20, 2025 Lloyd Austin
Jedidiah Royal (acting) January 20, 2025 - January 22, 2025 Robert G. Salesses (acting) Donald Trump
John Noh (acting) January 22, 2025 - Present Pete Hegseth
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Role and responsibilities

Like the Assistant Secretary of Defense for International Security Affairs, the ASD (IPSA) is responsible for oversight of security cooperation programs and foreign military sales programs within the regions under its supervision.[11] The ASD (IPSA) also works closely with the United States Indo-Pacific Command, United States Central Command, and the Asia-Pacific Center for Security Studies. Finally, the ASD (IPSA) represents the USD(P) and the Secretary of Defense in interagency policy deliberations and international negotiations related to the Asia-Pacific region. The Office of the ASD (IPSA) is an entity of the Office of the Secretary of Defense.

Structure

Summarize
Perspective

This office was created in 2007. It is composed of at least six country/sub-regional desks, each staffed by a Senior Country Director. Most desks are also supported by an Assistant Country Director or group of Country Directors. As of February 2011, the desks listed on the APSA website included:

  • Australia, New Zealand, and South Pacific Islands
  • Burma, Cambodia, Laos, Thailand, Vietnam
  • China, Hong Kong, Mongolia, Taiwan
  • Japan
  • Korea
  • Indonesia, Malaysia, Philippines, Singapore, Brunei, East Timor

However, this list must be incomplete, since the office also has oversight of programs in Central Asia, Afghanistan and Pakistan, as well as India and other Asian nations.[12]

Depending on their areas of coverage, the country/sub-regional desks report to four different Deputy Assistant Secretaries:

  • DASD East Asia
  • DASD China
  • DASD South & Southeast Asia
  • DASD Afghanistan, Pakistan and Central Asia.

DASDs are appointed by the Secretary of Defense. Some are appointed from civilian life, while others are career defense officials. Once at the DASD level, the latter are considered a part of the DoD Senior Executive Service.

The ASD (APSA) is also supported by a Principal Deputy, or PDASD, who helps oversee the DASDs and the office's country/sub-regional desks.

Principal Deputy Assistant Secretaries for Asian and Pacific Security Affairs/Indo-Pacific Security Affairs

More information Name, Tenure ...
Name Tenure ASD (APSA) Served Under USD(P) Served Under SecDef(s) Served Under President(s) Served Under
Mitchell ShiversJune 2008[13] – January 2009James J. ShinnEric S. EdelmanRobert M. GatesGeorge W. Bush
Derek MitchellApril 2009 – August 2011Wallace "Chip" GregsonMichèle FlournoyRobert M. Gates
Leon Panetta
Barack Obama
Dr. Peter R. LavoyAugust 2011 – February 2014Mark LippertMichèle Flournoy
James N. Miller
Leon PanettaBarack Obama
Kelly E. MagsamenFebruary 2014 – January 2017David B. ShearMichael D. Lumpkin
Christine E. Wormuth
Brian P. McKeon
Ashton CarterBarack Obama
David F. Helvey (acting)June 2016 – January 2017Kelly E. Magsamen (acting)Brian P. McKeonAshton CarterBarack Obama
David F. HelveyJanuary 2017 – May 2021David F. Helvey (acting)
Randall G. Schriver
Robert Karem (acting)
David Trachtenberg (acting)
John C. Rood
James MattisDonald Trump
Colin Kahl Lloyd Austin Joe Biden
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Deputy Assistant Secretaries of Defense Reporting to the ASD (APSA)

The list below details both the current DASD and previous DASD posts in this office.

More information Name, Tenure ...
Name Tenure ASD (APSA) Served Under USD(P) Served Under SecDef(s) Served Under President(s) Served Under
Active Offices
DASD (APSA), East Asia
David Samuel Sedney[14]2007–2009James J. Shinn
Derek Mitchell
Eric S. EdelmanRobert M. GatesGeorge W. Bush
R. Michael Schiffer[15]May 6, 2009 – 2012Wallace "Chip" Gregson
Derek Mitchell
Michele FlournoyRobert M. GatesBarack Obama
David Helvey[16] 2013–2015 David Shear James N. Miller

Michael D. Lumpkin

Christine E. Wormuth

Chuck Hagel

Ash Carter

Barack Obama
Abraham M. Denmark[17] 2015 – January 2017 David Shear
Kelly E. Magsamen
Brian P. Mckeon Ashton Carter Barack Obama
BGen Roberta L. Shea July 2017 – May 2019 David F. Helvey Robert Karem
Joseph D. Kernan
James Mattis
Mark Esper
Donald Trump
Heino Klinck[18] August 2019 – january 2021 Randall Schriver
David F. Helvey
Joseph D. Kernan Mark Esper Donald Trump
Siddharth Mohandas 2021 - Present David F. Helvey

Ely Ratner

Colin Kahl Lloyd Austin Joe Biden
DASD (APSA), China
Chad SbragiaJune 2019 – January 2021Randall Schriver
David F. Helvey
Joseph D. KernanMark EsperDonald Trump
Michael S. Chase February 2021[19] - Present David F. Helvey

Ely Ratner

Colin Kahl Lloyd Austin Joe Biden
DASD (APSA), South and Southeast Asia
James Clad[20][21][22]March 2007 – January 2009James J. ShinnEric S. EdelmanRobert M. GatesGeorge W. Bush
Robert Scher[15]May 6, 2009 – April 2012Wallace "Chip" Gregson
Derek Mitchell
Michele FlournoyRobert M. GatesBarack Obama
Joseph Felter[23]July 2017 – September 2019[24]David F. Helvey
Randall Schriver
David F. Helvey
Robert Karem
Joseph D. Kernan
James Mattis
Mark Esper
Donald Trump
Lindsey W. Ford 2021 - Present David F. Helvey

Ely Ratner

Colin Kahl Lloyd Austin Joe Biden
DASD (APSA), Afghanistan, Pakistan, and Central Asia
David Samuel Sedney[25]2009 – May 2013Wallace "Chip" Gregson
Derek Mitchell
Michele FlournoyRobert M. GatesBarack Obama
Thomas CrociFebruary 3, 2020 – January 19, 2021David F. HelveyJoseph D. KernanMark EsperDonald Trump
Rebecca Zimmerman February 16, 2021 - Present David F. Helvey

Ely Ratner

Colin Kahl Lloyd Austin Joe Biden
Defunct Offices
DASD (APSA), Central Asia
Mitchell Shivers2007[26] – June 2008James J. ShinnEric S. EdelmanRobert M. GatesGeorge W. Bush
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References

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