Illustrative: packages on a board with routed traces carrying clocked signals, or a data hall of racks and their status lights
Risk Academy, led by the Nexus Consortium · Governance, Policy and International Affairs · Department of Peace, Conflict and Security
Defence, deterrence and the hybrid threats below the threshold of war
Security, defence and hybrid threats
Security risk now runs through infrastructure, information and trade as much as through armed forces.
- Courses
- In preparation
- Levels
- In development
- Labs
- In development
- Security studies and threat assessment
- Hybrid threats and grey-zone activity
- Sabotage of critical infrastructure and subsea assets
- Economic coercion and weaponised interdependence
- Civil preparedness and total defence
- Deterrence and escalation
- Arms control and non-proliferation
- Defence and security in space and cyberspace
- Societal resilience to foreign interference
Build a twin of any place
Search any place or open the world; the layers and generators follow security, defence and hybrid threats on the planet map, the globe and in 3D.
- 13 countries
- First-level divisions, geoBoundaries gbOpen with a licence gate per boundary: read live when the 3D twin opens
- Natural events, NASA EONET: read live when the 3D twin opens
Drag to turn the globe, Ctrl with the wheel to zoom. Keyboard: arrows turn, + and – zoom, 0 resets, V steps through the views, Escape clears.
Flat map of the same data: the 13 countries on a graticule and the numbers below. The globe opens on devices that can draw it, once its code has been checked; the live events and divisions load in the globe on request, each with its data date.
The boundaries, names and designations shown do not imply any judgement on the legal status of any territory, or any endorsement or acceptance of such boundaries. Countries: Natural Earth (public domain).
Hazards and exposure in the contiguous United States
Flood water, active fires and surface heat beside population and night-time lights, over the contiguous United States.
The interactive map needs JavaScript; the layer list and sources are below.
Layers 3
Hazards and exposure
Keyboard, with the map focused
Hold Ctrl or ⌘ and scroll to zoom
Latest available
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth
Loading the latest NASA imagery.
Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.
Hazards and exposure, framed on the contiguous United States.Satellite and model products as NASA publishes them, each with its own date. They are indicators, not assessments of any place.
Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONET · U.S. Geological SurveySources and licences
- We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). doi:10.7927/H49C6VHW. CC BY 4.0
- VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- MODIS and VIIRS atmosphere products, NASA LANCE and LAADS DAAC; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). Cite as: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team (2019). ASTER Global Digital Elevation Model V003. doi:10.5067/ASTER/ASTGTM.003. NASA open data
- Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
- © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
- Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
- Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
- Live events: NASA Earth Observatory Natural Event Tracker (EONET); events are indicative and keep their original source links.
- Live: NASA EONET Events are indicative, not authority warnings.
- Live: U.S. Geological Survey Events are indicative, not authority warnings.
- NASA GIBS: We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).
- River discharge forecast, 30 days with range (GloFAS via Open-Meteo): Contains modified Copernicus Emergency Management Service information 2026; not a flood warning.
- Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
- Optional layers (10 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.
Layers and dates
- Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
- Active fires and thermal anomalies: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
- Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
- Land surface temperature, day, 8-day composite: VIIRS NOAA-20 Level 3, 8-day, NASA LANCE · 14 Sep 2026
- Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
- Aerosol optical depth, daily: VIIRS NOAA-20 Deep Blue AOD, NASA LANCE · 13 Oct 2026
The subject, methods and measures and debates and bodies
The field and its scope
For defence and civil preparedness planners, infrastructure operators, security analysts and policy advisers who need to assess hybrid threats, deterrence and societal resilience as risk problems.
Quantities and units
Methods and their limits
Each method is listed with what it assumes and where it fails.
What the field debates
Bodies that set practice, and the data they publish
Bodies and standards are named so learners can find and apply their published work; the Academy teaches their use and links to the publisher, and no affiliation is implied.
From an outage to an uncovered day: civil preparedness as days of supply against a disruption
A hybrid attack on infrastructure is felt as an outage of some length; households and systems hold a stock measured in days of supply; the days the outage runs beyond the stock are the uncovered days a civil preparedness policy exists to reduce.
Sources: NATO, Resilience, civil preparedness and Article 3 (2024); European Commission and High Representative, Joint Framework on countering hybrid threats: a European Union response, JOIN(2016) 18 (2016); Wigell, Hybrid interference as a wedge strategy: a theory of external interference in liberal democracy (2019); Rid, Cyber War Will Not Take Place (2012); Jervis, Cooperation under the Security Dilemma (1978).
At a glance, hub and courses
Security, defence and hybrid threats at a glance
risksacademy.comgovernance-policydiscipline
- Open, 0
- In preparation, 0
- Subtopics, 9
Research and tools
Research and preprints as they are published, by discipline, with the faculty's other tools.
The hub lists the newest research and preprints for Security, defence and hybrid threats, each with its source and date. Open the research hub
Courses in this discipline
Courses for this discipline are in development; until they open, study it through the connected courses and open lessons below.
The course catalogue lists every open course of the Academy.
How Security, defence and hybrid threats is taught, as a process you can run
Press Play to run this process from this page's own data.
Practice, learning and connections
How technology helps and what risk it brings
Achievements in this discipline
Course achievements
One for each course with this as its primary discipline, earned when you pass the course's assessed activities.
Department: Peace, Conflict and Security
Earn two discipline achievements in the Department of Peace, Conflict and Security. In development.
An achievement is a record of the learning completed and assessed here. How recognition works.
Where the subject is practised
A field platform page on this subject is in development.
The three Foundry systems where it is practised
Across the ecosystem
Take part in Governance, Policy and International Affairs
Start from who you are.
Core references and where to begin
Start with Jervis, then Morgan, then Hoffman.
Questions, answers and key terms
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What does completing a course give me?
Where do the data and the places come from?
How do I take part beyond the courses in security, defence and hybrid threats?
Key terms
Hybrid threat
Coordinated use of military and non-military means, such as sabotage, cyber attacks and disinformation, below the threshold of open war.
Grey zone
Competition between states that stays below the threshold that would trigger a conventional military response.
Total defence
A national approach in which civil society, business and government prepare alongside the armed forces.
Economic coercion
The use of trade, investment or financial measures to pressure another state.
Contribute evidence from this page.
Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
Around Security, defence and hybrid threats
Prepare with a related course
Open courses in connected disciplines teach the methods this discipline will build on.