Assistant Chief of the Defence Staff explained

The Assistant Chief of the Defence Staff (ACDS) is a senior British military officer. There are a number of ACDS appointments and they are held by officers of two-star rank (rear admiral, air vice-marshal, or major general). They work in the Ministry of Defence.

Assistant Chief of the Defence Staff (Health)

The ACDS(H) reports to the Surgeon General.

• Surgeon Rear Admiral Lionel Jarvis (2008–2011)
• Major General Jeremy Rowan (2011–2014)
• Surgeon Rear Admiral Alasdair Walker (2014–2015)
• Major General Martin Bricknell (2015–2018)

Assistant Chief of the Defence Staff (Capability & Force Design)

• Air Vice-Marshal Graeme A. Robertson (1994–1996)
• Rear-Admiral Nigel R. Essenhigh (1996–1998)
• Major-General John P. Kiszely (1998–2001)
• Rear-Admiral Rory A.I. McLean (2001–2004)
• Rear-Admiral Timothy J.H. Laurence (2004–2007)
• Air Vice-Marshal Kevin J. Leeson (2007–2009)
• Rear-Admiral Alan D. Richards (2009–2011)
• Major-General Mark Poffley (2011–2014)
• Rear Admiral Tim Fraser (2014–2017)
• Air Vice-Marshal Richard Knighton (2017–2018)
• Major-General Robert Magowan (2018–2020)
• Rear Admiral Hugh Beard (2020–2022)
• Major-General David Eastman (2022–2024)^[1]
• Air Vice-Marshal Tim Jones (2024–present)

Assistant Chief of the Defence Staff (Military Strategy) later, Defence Engagement

• Major-General Alexander J.S. Storrie (2011–2013)
• Rear-Admiral Simon J. Ancona (2013–2017)
• Major-General Giles P. Hill (2017–2019)
• Major-General Stephen McMahon (2019–2020)
• Air Vice-Marshal Alastair P.T. Smith (2020–2022)
• Major General Julian Buczacki (2022-2023)
• Major General Adrian P. Reilly (2023-present)

Assistant Chief of the Defence Staff (Intelligence Capability)

The ACDS(IC) reports to the Chief of Defence Intelligence.

• Major General Jerry Thomas (2009–2012)^[2]

Assistant Chief of the Defence Staff (Commitments)/(Operations, now Operations & Commitments)

• Rear Admiral David Brown (1980–1982)
• Air Vice-Marshal Clive Loader (2002–2004)
• Major General Nick Houghton (2004–2005)
• Major General Chris Nickols (2005–2008)
• Air Vice-Marshal Andrew Pulford (2008–2010)
• Major General David Capewell (2010–2011)
• Air Vice-Marshal Bob Judson (2011–2013)
• Major General Patrick Sanders (2013–2015)
• Air Vice-Marshal Edward Stringer (2015–2017)
• Air Vice-Marshal Andrew Turner (2017–2019)
• Major General Charles Stickland (2019–2021)^[3]
• Air Vice-Marshal Allan Marshall (2021–2024)^[4]
• Rear Admiral Steve Moorhouse (2024-present)

Assistant Chief of the Defence Staff (Personnel Capability)

Since 1992, the Defence Services Secretary has usually holds the appointment of ACDS(P) as a secondary role.

• Major General Brian Pennicott (1992–1994)
• Air Vice-Marshal Peter John Harding (1994–1998)
• Rear Admiral Rodney Lees (1998–2001)
• Major General Christopher Elliot (2001–2004)
• Air Vice-Marshal David Pocock (2004–2005)
• Rear Admiral Peter Wilkinson (2005–2007)
• Major General Matthew Sykes (2009–2010)
• Air Vice-Marshal David Murray (2010–2012)
• Rear Admiral Simon Williams (2012–2015)
• Major General Richard Nugee (2015–2016)
• Air Vice-Marshal Garry Tunnicliffe (2016–2019)
• Rear-Admiral James Macleod (2019–2022)
• Rear-Admiral Philip Hally (2022–2023)
• Major General Eldon Millar (2023-present)

Assistant Chief of the Defence Staff (Policy)

• Air Vice-Marshal John Gingell (1975–1978)
• Rear Admiral Jock Slater (1985–1987)
• Air Vice-Marshal David Hobart (2001–2004)^[5]
• Major General Andrew Stewart (2004–2006)
• Rear Admiral Alan Richards (2006–2009)
• Major General Jonathan Shaw (2009–2012)

Assistant Chief of the Defence Staff (Reserves and Cadets)

The ACDS(R&C) is the senior reservist of the British Armed Forces. They are responsible for tri-service policy relating to the reserves and cadet forces. The appointment was created in 2004.

• Major General Gerald Grosvenor, 6th Duke of Westminster (2004–2007)^[6]
• Major General Simon Lalor (2007–2010)
• Major General Greg Smith (2010–2013)
• Major General John Crackett (2013–2016)
• Major General Ranald Munro (2016–2019)
• Major General Simon Brooks-Ward (2019–2022)^[7]
• Major General Marc Overton (2022–present)

Assistant Chief of the Defense Staff (Nuclear, Chemical, Biological)

• Rear Admiral John Gower (2011-2014)^{[8] [9]}

External links

• Web site: Mackie . Colin . Ministry of Defence and Tri-Service Senior Appointments . gulabin.com . 4 December 2015 . pdf . November 2015 . dead . https://web.archive.org/web/20151117033054/http://www.gulabin.com/armynavy/pdf/Ministry%20of%20Defence%20Senior%20Posts.pdf . 17 November 2015 .

Notes and References

1. Web site: Defence Committee: Oral evidence: The US, UK and NATO, HC 184. House of Commons. 1 December 2022.
2. Web site: Major General (Retd) Jerry Thomas. Strategy and Security Institute. University of Exeter. 4 December 2015.
3. Web site: Ministry of Defence and Tri-Service Appointments. Strategy and Security Institute. www.gulabin.com. 26 June 2019.
4. Web site: Senior Appointments: 2021 . Royal Air Force . 2 November 2021 . en-gb . 1 November 2021.
5. Web site: Hobart, David Anthony . . Oxford University Press . 22 March 2019 . 1 December 2018.
6. Web site: Duke of Westminster and the Royal Armoured Corps . Royal Armoured Corps News . 10 June 2013 . 20 September 2011 . dead . https://web.archive.org/web/20120217194446/http://www.royalcorpsnews.co.uk/duke-of-westminster.html . 17 February 2012 .
7. Web site: Army Reserve Regional RD Staff Appointments 2019 . . 2 August 2019 . army.mod.uk . British Army . 6 October 2019 . ACDS (Reserves & Cadets) Maj Gen Simon Brooks-Ward is looking to appoint a suitably qualified officer as his ADC..
8. Web site: John Gower (1960-2024) . . European Leadership Network.
9. Web site: Release of information. Ministry of Defense Navy Command Headquarters. October 13, 2014.