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John Gearson

Professor John Gearson

Head of the School of Security Studies

  • Director at the Centre for Defence Studies
  • Professor of National Security Studies

Research interests

  • Conflict
  • Security

Biography

John Gearson is the Head of the School of Security Studies, King's College London. A Professor of National Security Studies, he is also Director of the Centre for Defence Studies in the Department of War Studies, and previously served as Director of the Freeman Air & Space Institute between 2020-2022.

From 2002 to 2007 he was seconded to the House of Commons where he acted as the principal defence policy adviser to the Defence Select Committee and as a Parliamentary Clerk to the Constitutional Affairs Select Committee. While at Parliament he was responsible for inquiries into UK Defence and Security, the Iraq War, the New Chapter to the Strategic Defence Review, the 2003 Defence White Paper, and the Freedom of Information Act. After leaving Parliament he acted as a senior adviser to the UK Ministry of Defence study into the Military Role in Counter-Terrorism and more recently contributed to background work for the 2010 UK Strategic Defence and Security Review.

Prior to his time at Parliament, he was Director of the MA in Defence Studies at the Joint Services Command and Staff College at the UK Defence Academy, where he was the subject lead in terrorism and asymmetric warfare. Previously he worked as a management consultant and was a special advisor to the City of London Corporation on the terrorist threat to the City following the Bishopsgate bombing of 1993.

He has taught at the University of London on the inter-collegiate history programme, where he completed his MA and PhD degrees in War Studies, the latter as a King's College Scholar, and he also holds a BSc (Econ) in International Politics with Strategic Studies from University of Wales, Aberystwyth. He was a Research Fellow of the Nuclear History Project and the German Historical Institute, London. He was editor of 'World Defence Systems' from 2008-2013 and is a member of the editorial board of Studies in Conflict and Terrorism.

Research Interests

His areas of research include:

  • National Security Strategy
  • Terrorism and Asymmetric Conflict
  • Defence Policy
  • British Foreign and Security Policy
  • Diplomatic History
  • Cold War History

Publications

Please visit the Research Portal for a list of publications

Teaching

He teaches and convenes the following MA module:

7SSWM017 Contemporary British Security

PhD Supervision

He is happy to offer PhD supervision in the following topic areas:

  • National Security Strategy
  • Terrorism and counter-terrorism
  • UK Foreign, Defence and Security Policy
  • Cold War History

Research

War studies 2
Centre for Defence Studies

CDS is a world-leading Centre for Defence and security research, thought-leadership, consultancy and executive development run by director Professor John Gearson.

SSSFreemanlogo
Freeman Air and Space Institute

Freeman Air & Space provides independent, original knowledge and analysis of air and space power issues.

Executive Education at the Centre for Defence Studies

A selection from CDS’s existing courses and programmes is listed below.

Project status: Ongoing

News

London Defence Conference 2024 to focus on deterrence and countering rising global security threats

Leaders, policymakers, politicians, academics and industry experts will gather this May at King's College London to discuss threats, deterrence and policies...

UK Prime Minister Rishi Sunak in conversation with Iain Martin, Director of the London Defence Conference

RAF needs to adapt as world becomes more unstable, says Chief of the Air Staff

Air Chief Marshal Sir Richard Knighton, speaking at a recent event at King’s, stated that the RAF needs to be "ready to do more" to combat future adversaries...

Air Chief Marshal Sir Richard Knighton

Day 2: The London Defence Conference, hosted by King's

Chair of the London Defence Conference, Lord Salisbury welcomed attendees to the second day of insight from policymakers, military experts and academics on...

Professor ‘Funmi Olonisakin, Vice President (International, Engagement & Service) at King’s College London

Day 1: The London Defence Conference, hosted by King's

Security and defence experts and leading political figures from around the world are attending a major two-day conference at King’s, discussing how to better...

Shitij Kapur at London Defence Conference

'The invasion by Russia of Ukraine has galvanised the NATO alliance', US Under Secretary of Army tells King's audience

The US Under Secretary of the Army, Honorable Gabe Camarillo, discussed some of the main challenges in military strategy during a visit to King’s Department...

US Under Secretary Army

King's recognised in national awards for sharing expertise on the Ukraine War

King’s was highly commended at a national communications award for helping inform public discourse around the Ukraine War.

A montage of media and events which were part of the Ukraine Explained campaign

New AUKUS agency is focused on much more than nuclear submarines, conference hears

The AUKUS security partnership should promote and maintain long-term stability in the Indo-Pacific region, the director of a new international initiative...

AUKUS

King's and Reaction co-hosting major conference on the Defence of Europe conference

Leading policymakers, military experts, academics and commentators are gathering to discuss the key defence and security challenges at an exclusive conference...

The Defence of Europe graphic

New Report provides recommendations for optimising the armed forces to meet current and future challenges

The report by the Centre for Defence studies shares progress that has been made and what obstacles remain to deliver a Whole Force model.

soldiers-1002_1920

Post-Brexit relationship the key topic as school plays host to military police

Brexit and the future military relationship between the UK and Germany were the topics of discussion at an event hosted by King’s College London.

King's College London's Professor Jeremy Jennings, right, led the panel discussion.

Events

25Mardoors-1767563_1920

Conversations with Strategy: Former MI6 Chief, John Sawers on intelligence and diplomacy

Sir John will discuss his 36 years working in diplomacy and intelligence, including in the British Secret Intelligence Service

Please note: this event has passed.

Research

War studies 2
Centre for Defence Studies

CDS is a world-leading Centre for Defence and security research, thought-leadership, consultancy and executive development run by director Professor John Gearson.

SSSFreemanlogo
Freeman Air and Space Institute

Freeman Air & Space provides independent, original knowledge and analysis of air and space power issues.

Executive Education at the Centre for Defence Studies

A selection from CDS’s existing courses and programmes is listed below.

Project status: Ongoing

News

London Defence Conference 2024 to focus on deterrence and countering rising global security threats

Leaders, policymakers, politicians, academics and industry experts will gather this May at King's College London to discuss threats, deterrence and policies...

UK Prime Minister Rishi Sunak in conversation with Iain Martin, Director of the London Defence Conference

RAF needs to adapt as world becomes more unstable, says Chief of the Air Staff

Air Chief Marshal Sir Richard Knighton, speaking at a recent event at King’s, stated that the RAF needs to be "ready to do more" to combat future adversaries...

Air Chief Marshal Sir Richard Knighton

Day 2: The London Defence Conference, hosted by King's

Chair of the London Defence Conference, Lord Salisbury welcomed attendees to the second day of insight from policymakers, military experts and academics on...

Professor ‘Funmi Olonisakin, Vice President (International, Engagement & Service) at King’s College London

Day 1: The London Defence Conference, hosted by King's

Security and defence experts and leading political figures from around the world are attending a major two-day conference at King’s, discussing how to better...

Shitij Kapur at London Defence Conference

'The invasion by Russia of Ukraine has galvanised the NATO alliance', US Under Secretary of Army tells King's audience

The US Under Secretary of the Army, Honorable Gabe Camarillo, discussed some of the main challenges in military strategy during a visit to King’s Department...

US Under Secretary Army

King's recognised in national awards for sharing expertise on the Ukraine War

King’s was highly commended at a national communications award for helping inform public discourse around the Ukraine War.

A montage of media and events which were part of the Ukraine Explained campaign

New AUKUS agency is focused on much more than nuclear submarines, conference hears

The AUKUS security partnership should promote and maintain long-term stability in the Indo-Pacific region, the director of a new international initiative...

AUKUS

King's and Reaction co-hosting major conference on the Defence of Europe conference

Leading policymakers, military experts, academics and commentators are gathering to discuss the key defence and security challenges at an exclusive conference...

The Defence of Europe graphic

New Report provides recommendations for optimising the armed forces to meet current and future challenges

The report by the Centre for Defence studies shares progress that has been made and what obstacles remain to deliver a Whole Force model.

soldiers-1002_1920

Post-Brexit relationship the key topic as school plays host to military police

Brexit and the future military relationship between the UK and Germany were the topics of discussion at an event hosted by King’s College London.

King's College London's Professor Jeremy Jennings, right, led the panel discussion.

Events

25Mardoors-1767563_1920

Conversations with Strategy: Former MI6 Chief, John Sawers on intelligence and diplomacy

Sir John will discuss his 36 years working in diplomacy and intelligence, including in the British Secret Intelligence Service

Please note: this event has passed.