Where is DSEI UK 2027 being held?

DSEI UK 2027 will be held in London, GBR.

When does DSEI UK 2027 take place?

DSEI UK 2027 runs from the beginning of September to the middle of September.

What is the primary focus of DSEI UK 2027?

DSEI UK 2027 focuses on defense and security across land, sea, air, space, and cyber domains, serving as a platform for industry, government, and military engagement in London, GBR.

DSEI UK 2027

Name: DSEI UK 2027
Start: 2027-09-07T00:00:00Z
End: 2027-09-10T00:00:00Z
Location: London

Sep 7–10, 2027London, United KingdomIn-person

Registration open

DSEI UK 2027 is a significant international event in the defense and security sector, taking place in London, United Kingdom. This gathering serves as a crucial platform for industry leaders, government officials, and military representatives to engage in discussions, showcase innovations, and forge partnerships. The event's focus spans across various domains, including land, sea, air, space, and cyber defense, reflecting the evolving landscape of global security challenges.

Committees & topics

Aerospace
Aerospace Power and the Future of Air Combat
International Pavilions & Participating Countries
International Pavilions and Defence Industrial Cooperation
Land
Land Warfare and the Lessons of Large-Scale Combat
Manufacturing
Defence Manufacturing, Industrial Base Resilience and Supply Chains
Medical
Defence Medical Services and Combat Casualty Care
Naval
Naval Power, Sea Denial and the Contest for Maritime Routes
Space
Military Space, Counter-Space Threats and Orbital Resilience
Tech
Emerging and Disruptive Technologies in Defence

Why it matters

The importance of DSEI UK 2027 lies in its role as a nexus for strategic dialogue and technological advancement within the defense and security industries. It provides a unique opportunity for nations to explore collaborative solutions to complex global threats, ranging from conventional warfare to emerging cyber challenges. The event facilitates the exchange of ideas and the demonstration of cutting-edge technologies that are vital for maintaining national and international security.

Furthermore, DSEI UK 2027 offers a critical forum for understanding the future trajectory of defense policy and procurement. Decisions made and relationships established at this event can have long-lasting implications for military capabilities, industrial development, and geopolitical alignments. For countries seeking to enhance their defense postures or contribute to global stability, participation in such a forum is indispensable.

How to prepare

To effectively engage with DSEI UK 2027, participants should undertake thorough preparation, focusing on key areas of interest and potential collaborations. A robust understanding of current geopolitical trends and technological advancements in defense is essential. This includes researching the specific needs and priorities of participating nations and defense organizations.

Delegates should also consider developing a strategic approach to networking, identifying key stakeholders and potential partners in advance. Utilizing frameworks such as the 'what-is-stakeholder-mapping' lesson can help in identifying and prioritizing interactions. Understanding the 'engagement-strategies' lesson will be crucial for navigating the diverse range of participants and maximizing the impact of discussions. Moreover, preparing concise and impactful presentations or discussion points related to one's objectives will be beneficial for engaging with the various exhibitors and attendees. Considering the 'dynamic-analysis' of potential partnerships and technological offerings will be key to deriving maximum value from the event.

Country perspectives

Where the most-relevant 6 countries stand on the core issues in play. Click through for the full country profile.

United Kingdom

Host nation and a major defense innovator, keen to showcase its industrial capabilities and foster international partnerships.

Role in topic

As the host nation, GBR plays a central role in organizing and facilitating DSEI UK 2027. It uses the event to highlight its defense industry's strengths, attract foreign investment, and strengthen its alliances with other nations. GBR also seeks to influence global defense discourse and promote its strategic interests through this platform.

United States

Leading defense spender and innovator, seeking to maintain technological superiority and expand market access for its defense contractors.

Role in topic

The USA is a significant participant, often showcasing advanced defense technologies and seeking to reinforce its strategic partnerships. Its presence is crucial for demonstrating commitment to collective security and for exploring opportunities for joint development and procurement with allies.

France

Major European defense power, focused on promoting its indigenous defense industry and collaborating on European security initiatives.

Role in topic

FRA utilizes DSEI UK 2027 to present its defense capabilities, particularly in aerospace and naval sectors. It aims to secure export contracts and engage in discussions about European defense cooperation and strategic autonomy, often seeking to balance national interests with broader European objectives.

Germany

Key European economic power with a growing defense budget, emphasizing technological innovation and multilateral security cooperation.

Role in topic

DEU's participation often centers on showcasing its advanced engineering and defense manufacturing capabilities. It seeks to strengthen its position within European defense structures and explore partnerships for developing next-generation military technologies, aligning with its increasing defense spending and strategic reorientation.

Japan

Technologically advanced nation with a focus on self-defense and regional stability, exploring advanced defense systems and international collaboration.

Role in topic

JPN attends to explore cutting-edge defense technologies and potential international collaborations that can enhance its self-defense capabilities. Its participation reflects a growing emphasis on modernizing its forces and contributing to regional security, particularly in areas like cyber defense and maritime security.

South Korea

Emerging global defense exporter, keen to expand its market share and demonstrate its advanced defense manufacturing capabilities.

Role in topic

KOR actively participates to showcase its rapidly advancing defense industry, particularly in areas like armored vehicles and naval platforms. It aims to secure new export deals and establish itself as a reliable partner in the global defense market, leveraging its technological prowess and competitive pricing.

Topics & background

The background behind each topic and the actors that shape it.

Aerospace Power and the Future of Air Combat

Aerospace capabilities have been a decisive element of modern military power since the Second World War, but the past decade has seen a rapid acceleration in the complexity and cost of air systems. Fifth-generation fighters such as the F-35 are now operational across NATO and partner air forces, while sixth-generation programmes — including the UK-Italy-Japan Global Combat Air Programme (GCAP) and the Franco-German-Spanish FCAS — promise manned-unmanned teaming, sensor fusion and AI-assisted decision-making. At the same time, the war in Ukraine has demonstrated how cheap drones and contested airspace can blunt traditional air superiority doctrines. The core debate facing aerospace ministries and industry is how to balance exquisite, expensive platforms with mass-producible uncrewed systems, and how to sustain industrial capacity in an era of supply chain shocks and rising raw material costs. Export controls, technology transfer, and interoperability between allied fleets are now central concerns, particularly as states seek strategic autonomy without fragmenting the Western industrial base. Looking ahead, the aerospace sector must also reconcile defence demand with sustainability pressures, workforce shortages, and the convergence of civil and military aviation in areas such as advanced air mobility and high-altitude platforms.

Key players

International Pavilions & Participating Countries

International Pavilions and Defence Industrial Cooperation

Major defence exhibitions have long served as venues for state-organised national pavilions, where governments showcase indigenous industries and pursue export, partnership and offset agreements. Since the mid-2010s the number and scale of these pavilions has grown markedly, reflecting both the diversification of the global arms trade away from a handful of suppliers and the strategic priority many middle powers now place on building sovereign defence industrial bases. The central tensions in this space concern export control regimes, end-use monitoring, and the increasing politicisation of defence trade. EU and UK arms export licensing has been challenged in courts over transfers to states involved in the Yemen and Gaza conflicts, while emerging exporters such as Turkey, South Korea and the UAE are reshaping market share with competitively priced systems and faster delivery timelines. Industrial cooperation agreements, technology transfer and co-production are now often prerequisites for major contracts. For participating countries, the questions are how to align commercial promotion with foreign policy objectives, how to ensure responsible export practices under the Arms Trade Treaty, and how to use bilateral pavilions to deepen long-term strategic partnerships rather than transactional sales.

Key players

Land Warfare and the Lessons of Large-Scale Combat

The return of large-scale, high-intensity land warfare in Europe following Russia's 2022 invasion of Ukraine has overturned more than a generation of Western assumptions about ground combat. Heavy armour, massed artillery, layered air defence and resilient logistics — capabilities allowed to atrophy during decades of counter-insurgency operations — are once again central to military planning. NATO members have launched urgent rearmament efforts, expanding 155mm shell production, replenishing armoured vehicle fleets and rebuilding ammunition stockpiles depleted by donations to Kyiv. Simultaneously, the battlefield has been transformed by the ubiquity of small drones, electronic warfare, persistent ISR, and precision strike at extended ranges. Concepts such as the transparent battlefield, drone-artillery kill chains, and dispersed manoeuvre are reshaping doctrine. Programmes including the US Army's next-generation combat vehicle efforts, Germany's Zeitenwende-funded acquisitions, and the UK's Land Industrial Strategy are attempting to translate these lessons into procurement. The key issues for land forces are how to scale industrial output, integrate uncrewed ground and aerial systems, protect armour against top-attack munitions, and maintain trained mass — all while sustaining support to Ukraine and deterring further aggression.

Key players

Defence Manufacturing, Industrial Base Resilience and Supply Chains

The defence manufacturing base across NATO and partner states has been stressed as never before in the post-Cold War era. Sustained support to Ukraine has revealed shortfalls in artillery ammunition, missile and air defence interceptor production, with European 155mm output only now approaching two million rounds per year after dedicated EU funding through ASAP and the European Defence Industry Programme. Lead times for complex systems have lengthened, and shortages of critical minerals, semiconductors, energetics and skilled labour have become strategic vulnerabilities. Governments are responding with long-term contracts, multi-year procurement authorities and direct investment in production capacity, marking a structural shift away from just-in-time, low-rate manufacturing toward warm and surge capacity. The US Defense Production Act, the UK Defence Industrial Strategy refresh, and the EU's European Defence Industrial Strategy (EDIS) all seek to rebuild sovereign and allied industrial depth, while debates continue over reliance on Chinese inputs in everything from rare earths to drone components. Key questions include how to scale skilled workforces, how to align ESG and financing rules with defence investment, and how to integrate non-traditional suppliers — including additive manufacturing firms and commercial tech companies — into resilient, multi-tier defence supply chains.

Key players

Defence Medical Services and Combat Casualty Care

Military medicine has been transformed over two decades of counter-insurgency operations in Iraq and Afghanistan, where forward surgical teams, tactical combat casualty care (TCCC), and rapid medevac drove battlefield survival rates to historic highs. The conflict in Ukraine, however, has exposed the limits of those models in a peer conflict where air superiority cannot be assumed, evacuation timelines stretch to many hours or days, and casualty volumes overwhelm hospital systems. Prolonged field care, blood supply at the point of injury, and resilient medical logistics have re-emerged as priority capability gaps. Defence medical services across NATO are now reassessing manning, reserve mobilisation, and civil-military integration to prepare for large-scale combat operations. Innovations in freeze-dried plasma, telemedicine, autonomous evacuation platforms, and wearable physiological monitoring are being trialled, while mental health, traumatic brain injury and long-term veteran care remain pressing concerns. The role of allied medical interoperability — common standards for triage, documentation and patient transfer — has been highlighted by multinational support to Ukrainian casualties. The central debate is how to maintain a deployable, scalable medical force that can operate under fire, sustain prolonged care, and reach back into national health systems already strained by post-pandemic pressures.

Key players

Naval Power, Sea Denial and the Contest for Maritime Routes

Maritime competition has returned to the centre of strategic planning. China's navy is now the world's largest by hull count and is rapidly expanding its blue-water capabilities, fielding new carriers, large surface combatants and amphibious assault ships. In the Indo-Pacific, tensions in the South China Sea, the Taiwan Strait and around the Senkaku/Diaoyu islands have driven a regional naval build-up, while AUKUS commits the US, UK and Australia to delivering nuclear-powered attack submarines to the Royal Australian Navy. At the same time, Houthi attacks on commercial shipping in the Red Sea since late 2023 have demonstrated how relatively low-cost anti-ship missiles and one-way attack drones can threaten global trade and exhaust expensive interceptor inventories. The Black Sea has shown that even a state without a meaningful surface fleet — Ukraine — can degrade a major navy through uncrewed surface vessels and coastal missiles. Sea denial is becoming cheaper; sea control more expensive. Key issues include sustaining shipbuilding capacity, integrating uncrewed surface and subsurface vehicles, protecting undersea cables and pipelines, and balancing high-end warfighting platforms with affordable mass.

Key players

Military Space, Counter-Space Threats and Orbital Resilience

Space has been formally recognised as an operational domain by NATO since 2019, reflecting the centrality of satellites to communications, navigation, ISR and missile warning. The proliferation of low-Earth-orbit constellations — most visibly Starlink, but also OneWeb, IRIS² and Chinese Guowang — has demonstrated the strategic value of resilient, distributed space architectures, particularly after Starlink's role in sustaining Ukrainian military communications. Governments are now pursuing dedicated military constellations, including the US Space Development Agency's Proliferated Warfighter Space Architecture and the UK's Skynet 6 and ISTARI programmes. At the same time, counter-space threats have grown more visible. Russia's 2021 direct-ascent ASAT test created a long-lived debris field, China and India have demonstrated kinetic ASAT capability, and reversible threats — jamming, spoofing, dazzling and cyber attacks on ground segments — are routine. Negotiations on the prevention of an arms race in outer space (PAROS) remain stalled at the Conference on Disarmament, while the 1967 Outer Space Treaty's relevance to modern dual-use systems is increasingly contested. The key questions facing defence space communities are how to ensure resilience and rapid reconstitution, how to integrate commercial space services responsibly, and how to develop norms of behaviour that reduce the risk of escalation in orbit.

Key players

Emerging and Disruptive Technologies in Defence

The convergence of artificial intelligence, autonomy, quantum technologies, advanced semiconductors and biotechnology is reshaping defence capability development. NATO's Emerging and Disruptive Technologies (EDT) strategy, the US DoD's Replicator initiative aimed at fielding thousands of attritable autonomous systems, and the UK's Defence AI Strategy all reflect a shared assessment that technological edge will be decisive in future conflicts. The lesson from Ukraine — that commercially-derived software, drones and data fusion can outpace traditional procurement — has accelerated efforts to bring non-traditional suppliers into defence. Governance is struggling to keep pace. International discussions on Lethal Autonomous Weapons Systems under the CCW have moved slowly, while the 2023 REAIM summit in The Hague produced a political declaration on responsible military use of AI now endorsed by more than 50 states. Export controls on advanced chips, lithography equipment and AI models have become tools of geopolitical competition, and concerns over data sovereignty, model security and adversarial AI have grown alongside capability investment. Key debates centre on meaningful human control over lethal decisions, the integration of commercial AI into kill chains, protection of defence supply chains for critical technologies, and how to scale innovation from prototype to fielded capability at relevant speed.

Key players

Resources

News, lessons, and country profiles to prep for DSEI UK 2027.

Recent reporting to ground your prep

India Naval Edge: Three Ships Commissioned

Canada's Saab GlobalEye Deal Shifts Defense

UAE's AI Dominance Widens Gap With India

White House Proposes New Frontier AI Controls

Lessons

Bite-sized lessons to build the basics

Hidden Stakeholders

Engagement Strategies

Dynamic Analysis

Stakeholder Mapping Workshop

Courses

Guided courses that go deeper on the topic

Advanced Negotiation

Multilateral Negotiation

Policy Brief Writing

Conflict Resolution

The states in play, with the data that shapes their stance

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

United Kingdom September 2027

By committee

Frequently asked questions

DSEI UK 2027

Sep 7–10, 2027London, United KingdomIn-person

Registration open

Committees & topics

Aerospace
Aerospace Power and the Future of Air Combat
International Pavilions & Participating Countries
International Pavilions and Defence Industrial Cooperation
Land
Land Warfare and the Lessons of Large-Scale Combat
Manufacturing
Defence Manufacturing, Industrial Base Resilience and Supply Chains
Medical
Defence Medical Services and Combat Casualty Care
Naval
Naval Power, Sea Denial and the Contest for Maritime Routes
Space
Military Space, Counter-Space Threats and Orbital Resilience
Tech
Emerging and Disruptive Technologies in Defence

Why it matters

How to prepare

Country perspectives

Where the most-relevant 6 countries stand on the core issues in play. Click through for the full country profile.

United Kingdom

Host nation and a major defense innovator, keen to showcase its industrial capabilities and foster international partnerships.

Role in topic

United States

Leading defense spender and innovator, seeking to maintain technological superiority and expand market access for its defense contractors.

Role in topic

France

Major European defense power, focused on promoting its indigenous defense industry and collaborating on European security initiatives.

Role in topic

Germany

Key European economic power with a growing defense budget, emphasizing technological innovation and multilateral security cooperation.

Role in topic

Japan

Technologically advanced nation with a focus on self-defense and regional stability, exploring advanced defense systems and international collaboration.

Role in topic

South Korea

Emerging global defense exporter, keen to expand its market share and demonstrate its advanced defense manufacturing capabilities.

Role in topic

Topics & background

The background behind each topic and the actors that shape it.

Aerospace Power and the Future of Air Combat

Key players

International Pavilions & Participating Countries

International Pavilions and Defence Industrial Cooperation

Key players

Land Warfare and the Lessons of Large-Scale Combat

Key players

Defence Manufacturing, Industrial Base Resilience and Supply Chains

Key players

Defence Medical Services and Combat Casualty Care

Key players

Naval Power, Sea Denial and the Contest for Maritime Routes

Key players

Military Space, Counter-Space Threats and Orbital Resilience

Key players

Emerging and Disruptive Technologies in Defence

Key players

Resources

News, lessons, and country profiles to prep for DSEI UK 2027.

Recent reporting to ground your prep

India Naval Edge: Three Ships Commissioned

Canada's Saab GlobalEye Deal Shifts Defense

UAE's AI Dominance Widens Gap With India

White House Proposes New Frontier AI Controls

Lessons

Bite-sized lessons to build the basics

Hidden Stakeholders

Engagement Strategies

Dynamic Analysis

Stakeholder Mapping Workshop

Courses

Guided courses that go deeper on the topic

Advanced Negotiation

Multilateral Negotiation

Policy Brief Writing

Conflict Resolution

The states in play, with the data that shapes their stance

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

Country dossier

United Kingdom September 2027

By committee

Committees & topics

Why it matters

How to prepare

Country perspectives

Topics & background

Resources

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Frequently asked questions

Committees & topics

Why it matters

How to prepare

Country perspectives

Topics & background

Resources

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Link India Strategic Dialogue on Bangladesh Elections 2026

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Frequently asked questions