Introduction
The NATO Science and Technology Organization (STO) report, The Effects of Climate Change on Security[1], establishes that climate change is a complex, systemic threat multiplier whose precise consequences depend heavily on regional, national, or local contexts. However, from a Defence planning perspective, a sobering truth must be recognized: all climate models are wrong, and militaries have never deployed on a mission that perfectly aligned with their current planning assumptions.
Relying on granular, long-range climate projections to map specific asset deployments is a flawed strategy. Because the interactions of environmental friction and conflict are highly non-linear, Defence planners should stop trying to predict the exact coordinates of future climate disruptions. Instead, capability development must pivot toward building an inherently adaptable, multi-vector framework—a “Lego set” of interoperable, modular systems capable of operating across any environment, expected or unexpected.
The Node-Based Environmental Friction Matrix
Rather than getting bogged down in localized scientific ambiguities, capability development can be streamlined by analysing basic environmental extremes—too hot, too cold, too wet, too dry, excess flooding, high winds, and extreme humidity—across four distinct operational nodes:
| Node | Functional Focus | Core Environmental Vulnerabilities |
| 1. Firm Base | National resilience, infrastructure, and home-station sustainment. | Severe localized flooding, grid instability, and extreme infrastructure degradation due to thermal stress. |
| 2. Global Supply | Strategic lift, continuous inter-theatre resupply, and force recovery. | High winds disrupting aerial ports, sea-level changes blocking maritime chokepoints, and volatile weather windows shortening transit timelines. |
| 3. Regional Supply | Theatre-level distribution and intra-theatre logistics hubs. | Extreme humidity accelerating materiel degradation; infrastructure washouts severing standard distribution lines. |
| 4. Local Operations | Tactical edge mission fit and front-line manoeuvre units. | Extreme heat causing human/machinery thermal failure; flash floods; freezing temperatures crippling battery and clean-tech microgrids. |
By cross-referencing basic environmental parameters against these nodes, Defence planners can isolate the true operational requirements needed to prepare, project, operate, sustain, and recuperate/redeploy forces anywhere on Earth.
The Solution: A Multi-Vector Lego Set of Systems
If context-specific knowledge dictates that we cannot plan for a singular, monolithic threat environment, the remedy is the creation of a comprehensive “toolbox” of interoperable, modular capabilities.
Instead of purchasing bespoke, heavy equipment specialized for single theatres (e.g., exclusively desert or arctic variants), the future force must be built out of flexible, self-contained sub-components. Under this modular paradigm:
- A containerized utility unit can be outfitted with high-capacity cooling compressors for an environment that is too hot, and then reconfigured with automated insulation blankets and solid-state heat pumps if a task force re-deploys to an environment that is too cold.
- Microgrid and water-generation building blocks can balance themselves digitally across different regional contexts, dynamically tuning power routing to cope with high humidity or extreme drought without needing an entirely separate procurement tail.
Conclusion
We must embrace the reality that our planning assumptions will be wrong the moment boots hit the ground. By shifting our investment framework from rigid platforms to a dynamic, multi-vector Lego set of capabilities, we decouple military readiness from the uncertainty of climate modelling. This open, modular approach fulfils the NATO STO’s call to transform knowledge into action, ensuring that no matter the localized volatility of the future battlespace, the system remains robust, resilient, and ready to dominate any mission set.
[1] https://publications.sto.nato.int/publications/STO%20Technical%20Reports/STO-TR-SAS-182/TR-SAS-182-ALL.pdf