Difference between revisions of "National Security Adviser"
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The first National Security Adviser (NSA) of the United Kingdom was [[Peter Ricketts|Sir Peter Ricketts]],<ref name=CO_0002>{{cite web|url=http://download.cabinetoffice.gov.uk/organogram/co-organogram.pdf |title=Cabinet Office Structure Charts, page 12 |publisher=[[Cabinet Office]] HM Government |date=May 2010 |accessdate=6 July 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20100705004000/http://download.cabinetoffice.gov.uk/organogram/co-organogram.pdf |archivedate=July 5, 2010 }}</ref> who was previously [[Permanent Secretary]] of the [[Foreign and Commonwealth Office]] and Chairman of the [[Joint Intelligence Committee (United Kingdom)|Joint Intelligence Committee]]. Ricketts was succeeded by [[Kim Darroch|Sir Kim Darroch]] in January 2012. On 7 July 2015, it was announced that [[Mark Lyall Grant|Sir Mark Lyall Grant]] would replace Darroch as National Security Adviser in early September 2015.<ref>{{cite web |url=https://www.gov.uk/government/news/national-security-adviser-appointment-sir-mark-lyall-grant |title=National Security Adviser appointment: Sir Mark Lyall-Grant |publisher=[[Cabinet Office]] HM Government |date=July 2015 |accessdate=9 July 2015 }}</ref> | The first National Security Adviser (NSA) of the United Kingdom was [[Peter Ricketts|Sir Peter Ricketts]],<ref name=CO_0002>{{cite web|url=http://download.cabinetoffice.gov.uk/organogram/co-organogram.pdf |title=Cabinet Office Structure Charts, page 12 |publisher=[[Cabinet Office]] HM Government |date=May 2010 |accessdate=6 July 2010 |url-status=dead |archiveurl=https://web.archive.org/web/20100705004000/http://download.cabinetoffice.gov.uk/organogram/co-organogram.pdf |archivedate=July 5, 2010 }}</ref> who was previously [[Permanent Secretary]] of the [[Foreign and Commonwealth Office]] and Chairman of the [[Joint Intelligence Committee (United Kingdom)|Joint Intelligence Committee]]. Ricketts was succeeded by [[Kim Darroch|Sir Kim Darroch]] in January 2012. On 7 July 2015, it was announced that [[Mark Lyall Grant|Sir Mark Lyall Grant]] would replace Darroch as National Security Adviser in early September 2015.<ref>{{cite web |url=https://www.gov.uk/government/news/national-security-adviser-appointment-sir-mark-lyall-grant |title=National Security Adviser appointment: Sir Mark Lyall-Grant |publisher=[[Cabinet Office]] HM Government |date=July 2015 |accessdate=9 July 2015 }}</ref> | ||
| − | It was announced in June 2020 that Mark Sedwill will step down from his role as NSA in September, and that current chief Brexit negotiator, [[David Frost (British diplomat)|David Frost]], will serve as the NSA.<ref>{{Cite news|date=2020-06-28|title=UK's top civil servant announces exit|language=en-GB|work=BBC News|url=https://www.bbc.com/news/uk-politics-53210773|access-date=2020-06-28}}</ref> A FOI answer however, states that Frost continues as Chief Negotiator to the EU as of October 2020 and [[David Quarrey]] took over the role of acting NSA provisionally.<ref>{{cite web |url=https://www.whatdotheyknow.com/request/695574/response/1663299/attach/3/FOI2020%2013631%20REPLY.pdf?cookie_passthrough=1 |title=Deputy National Security Advisers |author=<!--Not stated--> |date=23 October 2020 |website=whatdotheyknow.com |publisher=Whatdotheyknow |access-date=24 October 2020 |quote=David Frost remains Chief Negotiator for the EU talks and those negotiations will remain his top single priority until they have concluded, one way or another. Therefore, the Prime Minister agreed that David Quarrey should become Acting NSA}}</ref> It was announced in January 2021 that [[Stephen Lovegrove|Sir Stephen Lovegrove]] would become National Security Adviser at the end of March 2021, but the exact date has not been confirmed yet.<ref name=lovegrove>{{cite web|url=https://www.gov.uk/government/news/international-affairs-appointments-in-no10-and-cabinet-office|title=International Affairs Appointments in No.10 and Cabinet Office|date=29 January 2021|publisher=Cabinet office|access-date=2 February 2021}}</ref> | + | It was announced in June 2020 that [[Mark Sedwill]] will step down from his role as NSA in September, and that current chief Brexit negotiator, [[David Frost (British diplomat)|David Frost]], will serve as the NSA.<ref>{{Cite news|date=2020-06-28|title=UK's top civil servant announces exit|language=en-GB|work=BBC News|url=https://www.bbc.com/news/uk-politics-53210773|access-date=2020-06-28}}</ref> A FOI answer however, states that Frost continues as Chief Negotiator to the EU as of October 2020 and [[David Quarrey]] took over the role of acting NSA provisionally.<ref>{{cite web |url=https://www.whatdotheyknow.com/request/695574/response/1663299/attach/3/FOI2020%2013631%20REPLY.pdf?cookie_passthrough=1 |title=Deputy National Security Advisers |author=<!--Not stated--> |date=23 October 2020 |website=whatdotheyknow.com |publisher=Whatdotheyknow |access-date=24 October 2020 |quote=David Frost remains Chief Negotiator for the EU talks and those negotiations will remain his top single priority until they have concluded, one way or another. Therefore, the Prime Minister agreed that David Quarrey should become Acting NSA}}</ref> It was announced in January 2021 that [[Stephen Lovegrove|Sir Stephen Lovegrove]] would become National Security Adviser at the end of March 2021, but the exact date has not been confirmed yet.<ref name=lovegrove>{{cite web|url=https://www.gov.uk/government/news/international-affairs-appointments-in-no10-and-cabinet-office|title=International Affairs Appointments in No.10 and Cabinet Office|date=29 January 2021|publisher=Cabinet office|access-date=2 February 2021}}</ref> |
| − | The NSA is supported by at least two Deputy National Security | + | The NSA is supported by at least two [[Deputy National Security Adviser]]s, and serves at the pleasure of the Prime Minister. <ref>{{cite web |url=https://www.gov.uk/government/people/david-quarrey |title=David Quarrey |author=<!--Not stated--> |date=11 December 2019 |website=gov.uk |publisher=gov.uk |access-date=11 December 2019 |quote=Prime Minister’s International Affairs Adviser and Deputy National Security Adviser David Quarrey CMG}}</ref><ref>{{cite web |url=https://www.parliament.uk/documents/commons-committees/public-accounts/Correspondence/2019-20/Corresp-Cabinet-Office-Cyber-security-in-the-UK-191104.pdf |title=Sir Mark Sedwill: UK's top civil servant steps down |date=28 June 2020 |website=bbc.co.uk |access-date=28 June 2020}}</ref> |
| Line 28: | Line 28: | ||
|12 May 2010 | |12 May 2010 | ||
|23 January 2012 | |23 January 2012 | ||
| − | |1 year and 8 months | + | |1 year and 8 months<ref name="RickettsAppoint">UK Government, [https://www.gov.uk/government/news/establishment-of-a-national-security-council Establishment of a National Security Council] ''GOV.UK'', 12 May 2010.</ref> |
|rowspan="2"|[[David Cameron]] | |rowspan="2"|[[David Cameron]] | ||
|- | |- | ||
| Line 35: | Line 35: | ||
|23 January 2012 | |23 January 2012 | ||
|7 September 2015 | |7 September 2015 | ||
| − | |3 years and 7 months | + | |3 years and 7 months<ref name="DarrochAppoint">UK Government, [https://www.gov.uk/government/news/senior-diplomatic-appointments Senior Diplomatic Appointments] ''GOV.UK'', 24 June 2011.</ref> |
| | | | ||
|- | |- | ||
| Line 42: | Line 42: | ||
|7 September 2015 | |7 September 2015 | ||
|13 April 2017 | |13 April 2017 | ||
| − | |1 year and 7 months | + | |1 year and 7 months<ref name="LyallGrantAppoint">UK Government, [https://www.gov.uk/government/news/national-security-adviser-appointment-sir-mark-lyall-grant National Security Adviser appointment: Sir Mark Lyall-Grant] ''GOV.UK'', 7 July 2015.</ref> |
|[[David Cameron]] / [[Theresa May]] | |[[David Cameron]] / [[Theresa May]] | ||
|- | |- | ||
| Line 49: | Line 49: | ||
|13 April 2017 | |13 April 2017 | ||
|16 September 2020 | |16 September 2020 | ||
| − | |3 years and 5 months | + | |3 years and 5 months<ref name="SedwillAppoint">UK Government, [https://www.gov.uk/government/news/cabinet-office-new-senior-appointments-and-changes Cabinet Office: new senior appointments and changes] ''GOV.UK'', 27 February 2017.</ref> |
|[[Theresa May]] / [[Boris Johnson]] | |[[Theresa May]] / [[Boris Johnson]] | ||
| + | |- | ||
| + | |– | ||
| + | |[[David Frost]] (''appointed but never served'') | ||
| + | |28 June 2020 (announced) | ||
| + | |29 January 2021 (replaced before taking office) | ||
| + | |N/A<ref name="FrostAppoint">UK Government, [https://www.gov.uk/government/news/appointment-of-prime-ministers-national-security-advisor Appointment of Prime Minister’s National Security Adviser] ''GOV.UK'', 28 June 2020.</ref><ref name="FrostReplaced">BBC News, [https://www.bbc.co.uk/news/uk-politics-55854541 No 10 replaces Frost as National Security Adviser days before he starts] ''BBC News'', 29 January 2021.</ref> | ||
| + | |[[Boris Johnson]] | ||
|- | |- | ||
|– | |– | ||
| Line 56: | Line 63: | ||
|17 September 2020 | |17 September 2020 | ||
|25 March 2021 | |25 March 2021 | ||
| − | |6 months | + | |6 months<ref name="FrostAppoint" /> |
|[[Boris Johnson]] | |[[Boris Johnson]] | ||
|- | |- | ||
| Line 63: | Line 70: | ||
|24 March 2021 | |24 March 2021 | ||
|13 September 2022 | |13 September 2022 | ||
| − | |1 year and 6 months | + | |1 year and 6 months<ref name="LovegroveAppoint">UK Government, [https://www.gov.uk/government/news/international-affairs-appointments-in-no10-and-cabinet-office International Affairs Appointments in No.10 and Cabinet Office] ''GOV.UK'', 29 January 2021.</ref> |
|[[Boris Johnson]] | |[[Boris Johnson]] | ||
|- | |- | ||
| Line 70: | Line 77: | ||
|14 September 2022 | |14 September 2022 | ||
|29 November 2024 | |29 November 2024 | ||
| − | |2 years and 2 months | + | |2 years and 2 months<ref name="BarrowAppoint">UK Government, [https://www.gov.uk/government/news/sir-tim-barrow-appointed-as-national-security-adviser Sir Tim Barrow appointed as National Security Adviser] ''GOV.UK'', 7 September 2022.</ref> |
|[[Liz Truss]] / [[Rishi Sunak]] | |[[Liz Truss]] / [[Rishi Sunak]] | ||
|- | |- | ||
| Line 77: | Line 84: | ||
|2 December 2024 | |2 December 2024 | ||
|Incumbent | |Incumbent | ||
| − | |1 year and 4 months (as of April 2026) | + | |1 year and 4 months (as of April 2026)<ref name="PowellAppoint">UK Government, [https://www.gov.uk/government/news/appointment-of-jonathan-powell-as-national-security-adviser Appointment of Jonathan Powell as National Security Adviser] ''GOV.UK'', 8 November 2024.</ref> |
|[[Keir Starmer]] | |[[Keir Starmer]] | ||
|} | |} | ||
| Line 86: | Line 93: | ||
The Deputy National Security Adviser supports the National Security Adviser and Prime Minister on national security coordination and policy. There can be more than one DNSA at one time; some DNSAs are given specific titles referring to their specific remit. | The Deputy National Security Adviser supports the National Security Adviser and Prime Minister on national security coordination and policy. There can be more than one DNSA at one time; some DNSAs are given specific titles referring to their specific remit. | ||
| − | |||
| − | |||
{| class="wikitable" | {| class="wikitable" | ||
| Line 106: | Line 111: | ||
|~5 years | |~5 years | ||
|[[David Cameron]] | |[[David Cameron]] | ||
| − | |Foreign & Defence Policy | + | |Foreign & Defence Policy<ref name="MillerBio">UK Government, [https://www.gov.uk/government/people/julian-miller Julian Miller] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
|2 | |2 | ||
| Line 130: | Line 135: | ||
|~4 years | |~4 years | ||
|[[David Cameron]] / [[Theresa May]] | |[[David Cameron]] / [[Theresa May]] | ||
| − | |Intelligence, Security and Resilience | + | |Intelligence, Security and Resilience<ref name="McGuinnessACOBA">UK Government, [https://www.gov.uk/government/publications/mcguinness-paddy-deputy-national-security-adviser-cabinet-office-acoba-recommendation McGuinness, Paddy - Deputy National Security Adviser] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
|5 | |5 | ||
| Line 146: | Line 151: | ||
|~2 years | |~2 years | ||
|[[Theresa May]] / [[Boris Johnson]] | |[[Theresa May]] / [[Boris Johnson]] | ||
| − | |International Affairs | + | |International Affairs<ref name="TurnerBio">UK Government, [https://www.gov.uk/government/people/christian-turner Sir Christian Turner KCMG] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
|7 | |7 | ||
| Line 178: | Line 183: | ||
|~1 year 10 months | |~1 year 10 months | ||
|[[Boris Johnson]] | |[[Boris Johnson]] | ||
| − | |National Resilience & Security | + | |National Resilience & Security<ref name="SizelandBio">UK Government, [https://www.gov.uk/government/people/beth-sizeland Beth Sizeland] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
|11 | |11 | ||
| Line 186: | Line 191: | ||
|~1 year | |~1 year | ||
|[[Boris Johnson]] | |[[Boris Johnson]] | ||
| − | |Diplomacy, Development & Defence | + | |Diplomacy, Development & Defence<ref name="EllisBio">UK Government, [https://www.gov.uk/government/people/alex-ellis Alex Ellis KCMG] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
|12 | |12 | ||
| Line 202: | Line 207: | ||
|Ongoing | |Ongoing | ||
|[[Liz Truss]] / [[Rishi Sunak]] / [[Keir Starmer]] | |[[Liz Truss]] / [[Rishi Sunak]] / [[Keir Starmer]] | ||
| − | |Intelligence, Defence & Security | + | |Intelligence, Defence & Security (Executive DNSA)<ref name="NSSAbout">UK Government, [https://www.gov.uk/government/organisations/national-security/about National Security and Intelligence - About us] ''GOV.UK'', accessed April 2026.</ref><ref name="CollinsWitness">UK Government, [https://assets.publishing.service.gov.uk/media/68f002502adc28a81b4ad149/Statement_3.pdf Witness statement 3] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
|14 | |14 | ||
| + | |[[Sarah MacIntosh|Dame Sarah MacIntosh]] | ||
| + | |2022 | ||
| + | |2024 | ||
| + | |~2 years | ||
| + | |[[Boris Johnson]] / [[Liz Truss]] / [[Rishi Sunak]] / [[Keir Starmer]] | ||
| + | |International Affairs / Foreign Affairs<ref name="MacIntoshBio">UK Government, [https://www.gov.uk/government/people/sarah-macintosh Dame Sarah MacIntosh DCMG] ''GOV.UK'', accessed April 2026.</ref> | ||
| + | |- | ||
| + | |15 | ||
| + | |[[Jonathan Black]] | ||
| + | |~2024 | ||
| + | |2025 | ||
| + | |~1 year | ||
| + | |[[Keir Starmer]] | ||
| + | |International Economics and Global Issues<ref name="NSSAbout" /> | ||
| + | |- | ||
| + | |16 | ||
| + | |[[Nick Catsaras]] | ||
| + | |2025 | ||
| + | |Sep 2025 | ||
| + | |~9 months | ||
| + | |[[Keir Starmer]] | ||
| + | |International Economics and Global Issues<ref name="CatsarasBio">UK Government, [https://www.gov.uk/government/people/nick-catsaras Nick Catsaras CMG] ''GOV.UK'', accessed April 2026.</ref> | ||
| + | |- | ||
| + | |17 | ||
|[[Anna Clunes]] | |[[Anna Clunes]] | ||
|August 2025 | |August 2025 | ||
| Line 210: | Line 239: | ||
|~8 months (as of Apr 2026) | |~8 months (as of Apr 2026) | ||
|[[Keir Starmer]] | |[[Keir Starmer]] | ||
| − | |— | + | |—<ref name="ClunesBio">UK Government, [https://www.gov.uk/government/people/anna-clunes Anna Clunes CMG OBE] ''GOV.UK'', accessed April 2026.</ref> |
|- | |- | ||
| − | | | + | |18 |
|[[Barbara Woodward|Dame Barbara Woodward]] | |[[Barbara Woodward|Dame Barbara Woodward]] | ||
|December 2025 | |December 2025 | ||
| Line 218: | Line 247: | ||
|~4 months (as of Apr 2026) | |~4 months (as of Apr 2026) | ||
|[[Keir Starmer]] | |[[Keir Starmer]] | ||
| − | |International Affairs | + | |International Affairs<ref name="NSSAbout" /> |
|} | |} | ||
Latest revision as of 08:32, 27 April 2026
The National Security Adviser (NSA) is a senior official in the Cabinet Office, based in Whitehall, who serves as the principal adviser to the Prime Minister of the United Kingdom and Cabinet of the United Kingdom on all national security issues. The NSA post was created in May 2010 as part of the reforms that also saw the creation of the National Security Council.[1] There have been five holders of the office to date, of whom two served more than three years in the post.[2]
The NSA is Secretary to the National Security Council, which is chaired by the Prime Minister, and head of National Security and Intelligence (National Security Secretariat), which is, in turn, part of the Cabinet Office.[3] The NSA will also advise Secretaries of State and other senior government ministers on issues of national security when necessary. The NSA was the Senior Responsible Officer for the Conflict, Stability and Security Fund, with a budget of over £1 billion.[4] This role has been passed to the Deputy National Security Adviser.[5]
The first National Security Adviser (NSA) of the United Kingdom was Sir Peter Ricketts,[6] who was previously Permanent Secretary of the Foreign and Commonwealth Office and Chairman of the Joint Intelligence Committee. Ricketts was succeeded by Sir Kim Darroch in January 2012. On 7 July 2015, it was announced that Sir Mark Lyall Grant would replace Darroch as National Security Adviser in early September 2015.[7]
It was announced in June 2020 that Mark Sedwill will step down from his role as NSA in September, and that current chief Brexit negotiator, David Frost, will serve as the NSA.[8] A FOI answer however, states that Frost continues as Chief Negotiator to the EU as of October 2020 and David Quarrey took over the role of acting NSA provisionally.[9] It was announced in January 2021 that Sir Stephen Lovegrove would become National Security Adviser at the end of March 2021, but the exact date has not been confirmed yet.[10]
The NSA is supported by at least two Deputy National Security Advisers, and serves at the pleasure of the Prime Minister. [11][12]
National Security Secretariat as at 30 June 2010. Source Cabinet Office Structure Charts, 2010. Retrieved from Internet Archive of 15 April 2015.
List of National Security Advisers
| # | Name | Term start | Term end | Term length | Prime Minister(s) served |
|---|---|---|---|---|---|
| 1 | Sir Peter Ricketts (Lord Ricketts) | 12 May 2010 | 23 January 2012 | 1 year and 8 months[13] | David Cameron |
| 2 | Sir Kim Darroch (Lord Darroch) | 23 January 2012 | 7 September 2015 | 3 years and 7 months[14] | |
| 3 | Sir Mark Lyall Grant | 7 September 2015 | 13 April 2017 | 1 year and 7 months[15] | David Cameron / Theresa May |
| 4 | Sir Mark Sedwill (Lord Sedwill) | 13 April 2017 | 16 September 2020 | 3 years and 5 months[16] | Theresa May / Boris Johnson |
| – | David Frost (appointed but never served) | 28 June 2020 (announced) | 29 January 2021 (replaced before taking office) | N/A[17][18] | Boris Johnson |
| – | David Quarrey (acting) | 17 September 2020 | 25 March 2021 | 6 months[17] | Boris Johnson |
| 5 | Sir Stephen Lovegrove | 24 March 2021 | 13 September 2022 | 1 year and 6 months[19] | Boris Johnson |
| 6 | Sir Tim Barrow | 14 September 2022 | 29 November 2024 | 2 years and 2 months[20] | Liz Truss / Rishi Sunak |
| 7 | Jonathan Powell | 2 December 2024 | Incumbent | 1 year and 4 months (as of April 2026)[21] | Keir Starmer |
List of Deputy National Security Advisers
The Deputy National Security Adviser supports the National Security Adviser and Prime Minister on national security coordination and policy. There can be more than one DNSA at one time; some DNSAs are given specific titles referring to their specific remit.
| # | Name | Term start | Term end | Term length | Prime Minister(s) served | Area of responsibility |
|---|---|---|---|---|---|---|
| 1 | Julian Miller | July 2010 | 2015 | ~5 years | David Cameron | Foreign & Defence Policy[22] |
| 2 | Olly Robbins | 2010 | 2014 | ~4 years | David Cameron | Intelligence, Security & Resilience |
| 3 | Hugh Powell | 2013 | 2016 | ~3 years | David Cameron | Foreign Policy |
| 4 | Paddy McGuinness | 2014 | April 2018 | ~4 years | David Cameron / Theresa May | Intelligence, Security and Resilience[23] |
| 5 | Gwyn Jenkins | 2015 | 2017 | ~2 years | David Cameron / Theresa May | Conflict, Stability and Defence |
| 6 | Christian Turner | 2017 | 2019 | ~2 years | Theresa May / Boris Johnson | International Affairs[24] |
| 7 | Richard Moore | 2018 | 2018 | ~1 year | Boris Johnson | Intelligence, Security and Resilience |
| 8 | Madeleine Alessandri | 2018 | 2020 | ~2 years | Theresa May / Boris Johnson | National Resilience and Security |
| 9 | David Quarrey | July 2019 | April 2022 | 2 years 9 months | Boris Johnson | International Affairs |
| 10 | Beth Sizeland | February 2020 | 2021 | ~1 year 10 months | Boris Johnson | National Resilience & Security[25] |
| 11 | Alex Ellis | 2020 | 2021 | ~1 year | Boris Johnson | Diplomacy, Development & Defence[26] |
| 12 | Andrew McCosh | 2021 | present | ~4 years 9 months (as of Apr 2026) | Boris Johnson / Liz Truss / Rishi Sunak / Keir Starmer | Technology |
| 13 | Matthew Collins | ~2022 | present | Ongoing | Liz Truss / Rishi Sunak / Keir Starmer | Intelligence, Defence & Security (Executive DNSA)[27][28] |
| 14 | Dame Sarah MacIntosh | 2022 | 2024 | ~2 years | Boris Johnson / Liz Truss / Rishi Sunak / Keir Starmer | International Affairs / Foreign Affairs[29] |
| 15 | Jonathan Black | ~2024 | 2025 | ~1 year | Keir Starmer | International Economics and Global Issues[27] |
| 16 | Nick Catsaras | 2025 | Sep 2025 | ~9 months | Keir Starmer | International Economics and Global Issues[30] |
| 17 | Anna Clunes | August 2025 | present | ~8 months (as of Apr 2026) | Keir Starmer | —[31] |
| 18 | Dame Barbara Woodward | December 2025 | present | ~4 months (as of Apr 2026) | Keir Starmer | International Affairs[27] |
External links
Notes
- ↑ Joe Devanny and Josh Harris The National Security Council: national security at the centre of government Institute for Government/King's College London, 4 November 2014.
- ↑ Joe Devanny Why the UK needs a better process for appointing national security advisers Civil Service World 3 March 2017
- ↑ About - National security and intelligence. GOV.UK. Retrieved 2016-10-20.
- ↑ Conflict, Stability and Security Fund: Annual Report 2016/17 July 2017.
- ↑ CSSF Conflict, Stability and Security Fund: Annual Report 2017/18] 18 July 2018.
- ↑ Cabinet Office Structure Charts, page 12. Cabinet Office HM Government. Retrieved 6 July 2010.
- ↑ National Security Adviser appointment: Sir Mark Lyall-Grant. Cabinet Office HM Government. Retrieved 9 July 2015.
- ↑ UK's top civil servant announces exit. 2020-06-28.
- ↑ Deputy National Security Advisers. Whatdotheyknow.
- ↑ International Affairs Appointments in No.10 and Cabinet Office. Cabinet office.
- ↑ David Quarrey. gov.uk.
- ↑ Sir Mark Sedwill: UK's top civil servant steps down.
- ↑ UK Government, Establishment of a National Security Council GOV.UK, 12 May 2010.
- ↑ UK Government, Senior Diplomatic Appointments GOV.UK, 24 June 2011.
- ↑ UK Government, National Security Adviser appointment: Sir Mark Lyall-Grant GOV.UK, 7 July 2015.
- ↑ UK Government, Cabinet Office: new senior appointments and changes GOV.UK, 27 February 2017.
- ↑ 17.0 17.1 UK Government, Appointment of Prime Minister’s National Security Adviser GOV.UK, 28 June 2020.
- ↑ BBC News, No 10 replaces Frost as National Security Adviser days before he starts BBC News, 29 January 2021.
- ↑ UK Government, International Affairs Appointments in No.10 and Cabinet Office GOV.UK, 29 January 2021.
- ↑ UK Government, Sir Tim Barrow appointed as National Security Adviser GOV.UK, 7 September 2022.
- ↑ UK Government, Appointment of Jonathan Powell as National Security Adviser GOV.UK, 8 November 2024.
- ↑ UK Government, Julian Miller GOV.UK, accessed April 2026.
- ↑ UK Government, McGuinness, Paddy - Deputy National Security Adviser GOV.UK, accessed April 2026.
- ↑ UK Government, Sir Christian Turner KCMG GOV.UK, accessed April 2026.
- ↑ UK Government, Beth Sizeland GOV.UK, accessed April 2026.
- ↑ UK Government, Alex Ellis KCMG GOV.UK, accessed April 2026.
- ↑ 27.0 27.1 27.2 UK Government, National Security and Intelligence - About us GOV.UK, accessed April 2026.
- ↑ UK Government, Witness statement 3 GOV.UK, accessed April 2026.
- ↑ UK Government, Dame Sarah MacIntosh DCMG GOV.UK, accessed April 2026.
- ↑ UK Government, Nick Catsaras CMG GOV.UK, accessed April 2026.
- ↑ UK Government, Anna Clunes CMG OBE GOV.UK, accessed April 2026.