--- title: "DSEI Japan 2027 — Chiba | Model Diplomat" description: "DSEI Japan 2027 is a professional conference in Chiba, Japan, Apr 28–30, 2027. Organized by Unmannedsystemstechnology. Full prep on Model Diplomat." url: "https://modeldiplomat.com/conferences/professional/dsei-japan-2027" --- # DSEI Japan 2027 Apr 28–30, 2027[Chiba, Japan](https://www.google.com/maps/search/?api=1\&query=Chiba%2C%20Japan)In-person [Registration open](https://www.unmannedsystemstechnology.com/events/dsei-japan/) DSEI Japan is a professional unmanned systems trade exhibition held in Chiba, Japan. This event serves as a critical platform for showcasing the latest advancements in unmanned systems technology and fostering international collaboration within the sector. It is an opportunity for industry leaders, government officials, and military personnel to engage with cutting-edge innovations and strategic discussions. ## Committees & topics - Topics Command, Control & Communications (C3) in Modern Defence · Counter-Unmanned Aerial Systems (Counter-UAS) · Defence Electronics & Subsystems · Advanced Materials & Defence Manufacturing · Mission Sensors & Payloads · Positioning, Navigation & Guidance (PNT) · Professional Services in the Defence Sector · Propulsion & Power for Defence Platforms ## Why it matters The focus on unmanned systems at DSEI [Japan](https://modeldiplomat.com/country/japan) highlights a significant trend in modern defense and security. These technologies are rapidly transforming military capabilities and operational doctrines globally. The exhibition in JPN provides a unique vantage point into how a major regional power is integrating and developing these critical assets. This event is particularly relevant given the evolving geopolitical landscape in Asia. The adoption and innovation in unmanned systems by countries like JPN can have substantial implications for regional stability and international security alliances. Understanding the advancements showcased here is crucial for assessing future defense strategies and technological trajectories. ## How to prepare To effectively engage with the discussions and exhibits at DSEI [Japan](https://modeldiplomat.com/country/japan), participants should undertake a thorough review of current trends in unmanned systems technology, including advancements in AI, autonomy, and counter-unmanned systems. Familiarity with the strategic defense priorities of JPN and its key partners will also be beneficial. Consider utilizing frameworks such as the "Power-Interest Grid" (see /learn/lessons/power-interest-grid) to identify key stakeholders and their influence within the unmanned systems sector. Additionally, understanding "Hidden Stakeholders" (see /learn/lessons/hidden-stakeholders) can provide deeper insights into the underlying dynamics shaping technological development and adoption. Preparing targeted "Engagement Strategies" (see /learn/lessons/engagement-strategies) will maximize networking opportunities and facilitate productive dialogues with industry leaders and policymakers. ## Country perspectives Where the most-relevant 1 countries stand on the core issues in play. Click through for the full country profile. [Japan](https://modeldiplomat.com/country/japan) [Host nation and a significant player in the development and adoption of unmanned systems for defense and security.](https://modeldiplomat.com/country/japan) [Role in topic](https://modeldiplomat.com/country/japan) [JPN is hosting DSEI Japan in Chiba, underscoring its commitment to advancing unmanned systems technology. The nation is actively investing in research, development, and integration of these systems into its defense forces, reflecting a strategic pivot towards modernizing its military capabilities and enhancing regional security.](https://modeldiplomat.com/country/japan) ## Topics & background The background behind each topic and the actors that shape it. 1 ### Command, Control & Communications (C3) in Modern Defence Command, Control and Communications (C3) systems form the nervous system of modern military operations, enabling commanders to direct forces, share intelligence, and coordinate across domains. The discipline evolved from Cold War-era hardened radio and satellite networks into today's networked, software-defined environment, where interoperability across allied forces and resilience against jamming, cyber intrusion, and kinetic attack are paramount. Japan's 2022 National Security Strategy and the establishment of a Joint Operations Command (scheduled to stand up in 2025) reflect a regional push toward integrated, cross-domain C3 architectures. The core contemporary debate centres on multi-domain integration — linking land, sea, air, space, and cyber assets — and on the standards governing allied interoperability. NATO's Federated Mission Networking and the US Joint All-Domain Command and Control (JADC2) concept are reshaping procurement expectations among partners. In the Indo-Pacific, Japan, the United States, Australia and the United Kingdom are working through frameworks such as AUKUS Pillar II and the US-Japan alliance modernization to align C3 standards, while concerns over Chinese and Russian electronic warfare capabilities drive investment in resilient, low-probability-of-intercept communications. Today, the field is defined by the tension between rapid commercial innovation (LEO satcom, 5G, AI-enabled decision support) and the security requirements of sovereign defence networks. Export controls, supply-chain assurance, and the integration of AI into command workflows are unresolved policy questions with direct implications for alliance cohesion. Key players - [Japan](https://modeldiplomat.com/country/japan) [Host nation modernizing joint C3 under its new Joint Operations Command.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Lead architect of JADC2 and primary alliance C3 interoperability partner.](https://modeldiplomat.com/country/united-states) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [Key AUKUS Pillar II contributor on advanced C3 and networking.](https://modeldiplomat.com/country/united-kingdom) - [Australia](https://modeldiplomat.com/country/australia) [Indo-Pacific partner aligning C3 standards via AUKUS and trilateral frameworks.](https://modeldiplomat.com/country/australia) - [South Korea](https://modeldiplomat.com/country/south-korea) [Regional ally investing in integrated battle management and allied C3 links.](https://modeldiplomat.com/country/south-korea) 2 ### Counter-Unmanned Aerial Systems (Counter-UAS) The proliferation of small, low-cost unmanned aerial systems has transformed the threat landscape over the past decade. Conflicts in Nagorno-Karabakh (2020), Ukraine (since 2022), the Red Sea, and Israel-Gaza have demonstrated that commercially derived drones and loitering munitions can degrade armoured formations, strike critical infrastructure, and saturate traditional air defences at a fraction of the cost of intercepting them. Counter-UAS (C-UAS) has accordingly moved from a niche force-protection concern to a top-tier capability requirement. C-UAS encompasses detection (radar, RF, acoustic, EO/IR), identification, and defeat mechanisms ranging from electronic attack and GNSS spoofing to kinetic interceptors, directed-energy weapons, and high-power microwaves. Japan, exposed to incursions near its southwestern islands and concerned about North Korean and Chinese UAS activity, has prioritized C-UAS in successive defence buildups. The United States, United Kingdom, Israel and others have fielded layered systems, but cost-exchange ratios, airspace deconfliction, and rules of engagement in civilian areas remain difficult problems. The current policy debate centres on standardization across allies, export controls on dual-use counter-drone technology, and the legal framework for engaging UAS over civilian or contested airspace. Directed-energy systems are maturing but face power, cooling, and weather constraints, while AI-enabled swarm threats are accelerating faster than defensive doctrine. Key players - [Japan](https://modeldiplomat.com/country/japan) [Investing in layered C-UAS to protect bases and southwestern island chain.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Largest C-UAS R\&D and procurement actor, setting allied doctrine.](https://modeldiplomat.com/country/united-states) - [Israel](https://modeldiplomat.com/country/israel) [Leading developer of operationally proven C-UAS and directed-energy systems.](https://modeldiplomat.com/country/israel) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [Fielding DragonFire laser and exporting C-UAS expertise to allies.](https://modeldiplomat.com/country/united-kingdom) - [Ukraine](https://modeldiplomat.com/country/ukraine) [Real-world laboratory for C-UAS tactics against mass drone employment.](https://modeldiplomat.com/country/ukraine) 3 ### Defence Electronics & Subsystems Electronics and subsystems underpin virtually every modern defence platform — from radar and electronic warfare suites to mission computers, displays, and power management modules. The sector has been reshaped by the convergence of commercial semiconductor innovation and military requirements for radiation hardening, ruggedization, and trusted supply chains. Recent shocks, including the COVID-era chip shortage and escalating US-China technology competition, have made semiconductor sovereignty a defence-industrial priority for Japan and its partners. Japan's defence electronics base — anchored by firms such as Mitsubishi Electric, NEC, and Toshiba — has historically supplied highly capable subsystems but operated under tight export restrictions. The 2014 revision of arms export principles and subsequent loosening have opened cooperation, exemplified by the UK-Italy-Japan Global Combat Air Programme (GCAP), which depends on shared electronics development. Allied governments are also tightening controls on advanced node semiconductors and trusted foundry access under frameworks coordinated with the United States and the Netherlands. The contemporary policy questions involve securing supply chains against single points of failure (notably Taiwanese fabs), accelerating qualification of commercial-off-the-shelf components for military use, and managing dual-use export controls without strangling allied co-development. Key players - [Japan](https://modeldiplomat.com/country/japan) [Major supplier of defence electronics and host of advanced semiconductor reshoring efforts.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Sets standards for trusted microelectronics and leads allied export-control coordination.](https://modeldiplomat.com/country/united-states) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [GCAP partner integrating sensor and mission-system electronics with Japan.](https://modeldiplomat.com/country/united-kingdom) - [Italy](https://modeldiplomat.com/country/italy) [GCAP partner contributing radar and avionics subsystem expertise.](https://modeldiplomat.com/country/italy) - [South Korea](https://modeldiplomat.com/country/south-korea) [Significant defence electronics exporter and semiconductor manufacturing power.](https://modeldiplomat.com/country/south-korea) - [Taiwan](https://modeldiplomat.com/country/taiwan) [Critical node in the global semiconductor supply chain for defence-grade chips.](https://modeldiplomat.com/country/taiwan) 4 ### Advanced Materials & Defence Manufacturing Advanced materials — composites, ceramics, high-temperature alloys, additive-manufacturing feedstocks, and stealth coatings — increasingly determine the performance envelope of defence platforms. From the carbon-fibre structures of next-generation fighters to the ceramic matrix composites in hypersonic vehicles and the rare-earth magnets in precision actuators, materials science is now a strategic domain. Japan holds globally significant positions in carbon fibre (Toray), specialty steels, and precision machining. Manufacturing methods are simultaneously being transformed by additive manufacturing, digital twins, and AI-driven process control, allowing faster prototyping, distributed production, and resilient logistics. The war in Ukraine has highlighted the strategic value of munitions production scale, prompting Japan, the United States and European partners to invest in expanded production lines for missiles, artillery shells, and propellants. Rare-earth dependence on China — which dominates processing — remains a persistent vulnerability driving allied diversification efforts with Australia and others. Key policy debates include onshoring and "friend-shoring" of critical materials, qualification standards for additively manufactured defence parts, intellectual property protection in co-development programmes such as GCAP, and the environmental footprint of energetic materials and composites. Key players - [Japan](https://modeldiplomat.com/country/japan) [Global leader in carbon fibre and precision manufacturing for defence.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Sets pace for additive manufacturing adoption and critical-minerals strategy.](https://modeldiplomat.com/country/united-states) - [China](https://modeldiplomat.com/country/china) [Dominant processor of rare earths central to defence materials supply.](https://modeldiplomat.com/country/china) - [Australia](https://modeldiplomat.com/country/australia) [Key alternative supplier of critical minerals under allied diversification.](https://modeldiplomat.com/country/australia) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [GCAP partner and significant advanced materials and aerospace manufacturer.](https://modeldiplomat.com/country/united-kingdom) 5 ### Mission Sensors & Payloads Mission sensors and payloads — including radar, electro-optical/infrared (EO/IR) systems, signals intelligence packages, sonar, and synthetic aperture radar — define the situational awareness available to commanders. Over the last two decades, the proliferation of small satellites, unmanned platforms, and AI-enabled processing has democratized access to high-resolution, persistent sensing. Commercial space imagery from providers such as Maxar, Planet, and Japan's iQPS and Synspective has reshaped intelligence collection, as demonstrated in Ukraine and the South China Sea. Japan is investing heavily in maritime domain awareness around the Senkaku Islands and Taiwan Strait, expanding its constellation of imaging and signals satellites and upgrading airborne and shipborne sensors. The US-Japan alliance integrates sensor data through shared architectures, and trilateral cooperation with Australia and South Korea is deepening. At the same time, adversary investments in stealth, electronic warfare, and decoys are eroding traditional sensor advantages, pushing development toward multi-spectral fusion and AI-enabled target recognition. Current debates include the appropriate balance between exquisite, sovereign sensors and resilient commercial constellations; export controls on high-resolution imaging and SIGINT payloads; and the legal and ethical questions raised by AI-driven automated target recognition. Key players - [Japan](https://modeldiplomat.com/country/japan) [Expanding maritime ISR and satellite-based sensor constellations.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Provides core ISR architecture and sensor fusion across the alliance.](https://modeldiplomat.com/country/united-states) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [Co-develops next-generation sensors via GCAP and AUKUS frameworks.](https://modeldiplomat.com/country/united-kingdom) - [Australia](https://modeldiplomat.com/country/australia) [Partner in regional ISR sharing and undersea sensing programmes.](https://modeldiplomat.com/country/australia) - [France](https://modeldiplomat.com/country/france) [Major European supplier of radar and EO/IR payloads for export markets.](https://modeldiplomat.com/country/france) 6 ### Positioning, Navigation & Guidance (PNT) Reliable positioning, navigation and timing underpins precision strike, logistics, communications, and virtually all networked operations. GPS, GLONASS, Galileo, BeiDou and Japan's Quasi-Zenith Satellite System (QZSS) provide global and regional services, but military operations are increasingly contested by jamming and spoofing — vividly demonstrated in Ukraine, the eastern Mediterranean, and the Korean peninsula. The vulnerability of GNSS has elevated alternative PNT — inertial navigation, celestial, vision-aided, terrain-referenced, and quantum sensing — to a strategic priority. Japan's QZSS provides a regional augmentation and backup that enhances accuracy and resilience for both civilian and defence users, and is being expanded toward a seven-satellite constellation. Allied work on M-code GPS receivers, Galileo PRS access, and assured-PNT chipsets is accelerating. Precision guidance for munitions — combining GNSS, inertial measurement units, and increasingly AI-aided terminal seekers — is a focal point of munitions modernization across NATO and Indo-Pacific allies. Policy challenges include interoperability across allied PNT systems, export controls on high-grade IMUs and guidance kits, protection of civilian GNSS from spillover jamming, and the strategic implications of China's BeiDou as both a competitor and a tool of influence. Key players - [Japan](https://modeldiplomat.com/country/japan) [Operates QZSS as a regional PNT backbone and resilience layer.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Operator of GPS and lead developer of assured-PNT and M-code systems.](https://modeldiplomat.com/country/united-states) - [China](https://modeldiplomat.com/country/china) [Operates BeiDou, a strategic global GNSS competitor.](https://modeldiplomat.com/country/china) - [Russia](https://modeldiplomat.com/country/russia) [Operates GLONASS and is a major source of GNSS jamming and spoofing.](https://modeldiplomat.com/country/russia) - [Germany](https://modeldiplomat.com/country/germany) [Key Galileo contributor and developer of guidance and inertial technologies.](https://modeldiplomat.com/country/germany) 7 ### Professional Services in the Defence Sector Professional services — including consulting, systems engineering, legal and regulatory advisory, training and simulation, cybersecurity assurance, and through-life support — have become an indispensable layer of the defence enterprise. As platforms grow more software-intensive and procurement programmes more complex (GCAP, AUKUS, Future Combat Air Systems), governments increasingly rely on external expertise to manage acquisition, integration, and sustainment. Japan's defence buildup, accompanied by a roughly doubled defence budget by 2027, has expanded demand for industrial partnering, export-control compliance, and acquisition reform. The sector also encompasses workforce development, language and cultural training for coalition operations, and specialized legal services covering international humanitarian law, arms export regulation, and cyber norms. Japan's recent revisions to its Three Principles on the Transfer of Defense Equipment and Technology have opened new export pathways and created demand for compliance and partnering expertise. Globally, lessons from Ukraine have underscored the value of contracted logistics, training pipelines, and rapid acquisition support. Policy questions include the appropriate boundary between inherently governmental functions and contracted services, oversight of private military and security companies, conflict-of-interest management in advisory roles, and the security clearance and supply-chain assurance frameworks needed for cross-border professional services. Key players - [Japan](https://modeldiplomat.com/country/japan) [Reforming acquisition and export systems, driving demand for advisory services.](https://modeldiplomat.com/country/japan) - [United States](https://modeldiplomat.com/country/united-states) [Largest market and exporter of defence professional services and training.](https://modeldiplomat.com/country/united-states) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [Major hub for defence consultancy, legal services, and training exports.](https://modeldiplomat.com/country/united-kingdom) - [France](https://modeldiplomat.com/country/france) [Significant exporter of defence training, simulation, and advisory services.](https://modeldiplomat.com/country/france) - [Australia](https://modeldiplomat.com/country/australia) [Expanding professional services demand through AUKUS implementation.](https://modeldiplomat.com/country/australia) 8 ### Propulsion & Power for Defence Platforms Propulsion and power systems are foundational to every defence platform, from jet engines and naval gas turbines to electric drives, batteries, and emerging hypersonic propulsion. The shift toward more-electric and all-electric platforms — driven by directed-energy weapons, high-power sensors, and AI-enabled subsystems — is reshaping requirements for onboard power generation, distribution, and thermal management. Submarines, surface combatants, and next-generation aircraft increasingly demand step-changes in available electrical power. Japan has a mature engine and turbine industry (IHI, Kawasaki, Mitsubishi Heavy Industries) and is a partner in GCAP's next-generation engine development alongside Rolls-Royce and Avio Aero. Hypersonic and scramjet propulsion are active research areas in the United States, China, Russia, and increasingly Japan and European partners. Meanwhile, naval nuclear propulsion is at the heart of AUKUS, with significant non-proliferation and industrial-base implications. Battery technology — particularly for unmanned underwater and aerial systems — is another contested frontier with strong civil-military overlap. Key policy debates include export controls on advanced engine technology, decarbonization pressures on defence fleets, sovereignty over critical propulsion supply chains (including rare earths for electric motors), and the safety and proliferation implications of expanding naval nuclear propulsion to new operators. Key players - [Japan](https://modeldiplomat.com/country/japan) [GCAP engine partner and developer of advanced naval and aero propulsion.](https://modeldiplomat.com/country/japan) - [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [Rolls-Royce-led engine partner in GCAP and AUKUS nuclear propulsion.](https://modeldiplomat.com/country/united-kingdom) - [United States](https://modeldiplomat.com/country/united-states) [Leader in hypersonic, naval nuclear, and adaptive cycle engine development.](https://modeldiplomat.com/country/united-states) - [Italy](https://modeldiplomat.com/country/italy) [GCAP propulsion partner via Avio Aero and broader aero-engine base.](https://modeldiplomat.com/country/italy) - [Australia](https://modeldiplomat.com/country/australia) [Recipient of nuclear propulsion under AUKUS, reshaping regional propulsion landscape.](https://modeldiplomat.com/country/australia) - [China](https://modeldiplomat.com/country/china) [Rapidly advancing in aero-engine, hypersonic, and naval propulsion capabilities.](https://modeldiplomat.com/country/china) ## Resources News, lessons, and country profiles to prep for DSEI Japan 2027. Recent reporting to ground your prep [Supreme Court Upholds Election Commission Dis](https://modeldiplomat.com/story/supreme-court-keeps-election-commission-control-fight-alive) [Election Commission's Bengal Crackdown](https://modeldiplomat.com/story/election-commissions-bengal-crackdown-a-game-changer) [Kharge Calls Modi 'Terrorist', BJP Complains](https://modeldiplomat.com/story/kharges-terrorist-remark-on-modi-triggers-bjps-eci-complaint) [Congress Accuses India's Election Commission](https://modeldiplomat.com/story/congress-challenges-indias-election-commission-ahead-of-2026-polls) Lessons Bite-sized lessons to build the basics [The Power-Interest Grid](https://modeldiplomat.com/learn/lessons/power-interest-grid) [Hidden Stakeholders](https://modeldiplomat.com/learn/lessons/hidden-stakeholders) [Engagement Strategies](https://modeldiplomat.com/learn/lessons/engagement-strategies) [Dynamic Analysis](https://modeldiplomat.com/learn/lessons/dynamic-analysis) Courses Guided courses that go deeper on the topic [Advanced Negotiation](https://modeldiplomat.com/learn/courses/advanced-negotiation) [Multilateral Negotiation](https://modeldiplomat.com/learn/courses/multilateral-negotiation) [Policy Brief Writing](https://modeldiplomat.com/learn/courses/policy-brief) [Conflict Resolution](https://modeldiplomat.com/learn/courses/conflict-resolution) The states in play, with the data that shapes their stance [Japan](https://modeldiplomat.com/country/japan) [Country dossier](https://modeldiplomat.com/country/japan) [United States](https://modeldiplomat.com/country/united-states) [Country dossier](https://modeldiplomat.com/country/united-states) [United Kingdom](https://modeldiplomat.com/country/united-kingdom) [Country dossier](https://modeldiplomat.com/country/united-kingdom) [Australia](https://modeldiplomat.com/country/australia) [Country dossier](https://modeldiplomat.com/country/australia) [South Korea](https://modeldiplomat.com/country/south-korea) [Country dossier](https://modeldiplomat.com/country/south-korea) [Israel](https://modeldiplomat.com/country/israel) [Country dossier](https://modeldiplomat.com/country/israel) [Ukraine](https://modeldiplomat.com/country/ukraine) [Country dossier](https://modeldiplomat.com/country/ukraine) [Italy](https://modeldiplomat.com/country/italy) [Country dossier](https://modeldiplomat.com/country/italy) [Taiwan](https://modeldiplomat.com/country/taiwan) [Country dossier](https://modeldiplomat.com/country/taiwan) [China](https://modeldiplomat.com/country/china) [Country dossier](https://modeldiplomat.com/country/china) [France](https://modeldiplomat.com/country/france) [Country dossier](https://modeldiplomat.com/country/france) [Russia](https://modeldiplomat.com/country/russia) [Country dossier](https://modeldiplomat.com/country/russia) [Germany](https://modeldiplomat.com/country/germany) [Country dossier](https://modeldiplomat.com/country/germany) ## Frequently asked questions - - Free account Save conferences, research any topic with AI, build position papers, and keep your daily prep streak — free. 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