Introduction
The modern electromagnetic spectrum (EMS) is dynamic and can be denied, degraded, or disrupted without warning. A growing gap exists between NATO’s ability to fuse, disseminate, and exploit electromagnetic information and the demands of a future, heavily contested electromagnetic environment. The shortfall is not the absence of data, but the difficulty of federating, processing, releasing, and exploiting that data quickly enough across domains and command levels.1 NATO already possesses substantial electronic warfare (EW) data repositories and services, but much of the Alliance still relies on platform-centric EW systems and nationally separated mission-data architectures. Mission data and emitter libraries are often slow to update and difficult to share once forces are deployed. Together, these structural shortfalls degrade battlespace awareness for command and control (C2) at all echelons, resulting in a decision cycle that is slower than the adversary.
Information latency and releasability are increasingly the pacing constraints against adaptive adversaries in contested electromagnetic environments. Without an integrated digital backbone to share information quickly between disparate systems or units, electromagnetic observations cannot translate into timely decisions and coordinated action. NATO should treat an EW Cloud as an enabling operational architecture for electromagnetic spectrum operations (EMSO) and Suppression of Enemy Air Defences (SEAD), because information latency and releasability are now the principal pacing constraints against adaptive adversaries.
Modern adversary emitters are largely software defined. They can switch modes and waveforms through software reprogramming, enabling rapid updates and tactical adaptation. Additionally, passive sensors increasingly complement active systems, and cyber effects can spill over into the EMS, complicating Alliance’s ability to detect and categorise air defence systems. Against adaptive integrated air defence systems (IADS), SEAD must move beyond platform-centric suppression and toward a cyber-electromagnetic activity (CEMA)-enabled, continuously updated operating model in which EW effects, cyber actions, and mission-data updates support faster sensing, assessment, and action. Non-kinetic effects and mission-data agility are increasingly central to credible suppression.2
In SEAD operations, mobile and adaptive IADS punish static assumptions and slow update cycles. EW systems lacking agility and adaptability cede decision advantage in the EMS, and risk undermining the Alliance’s ability to counter, and ultimately deter, peer adversaries in a contested multi-domain environment.3
The EW Cloud as a Federated EW Architecture
A federated EW Cloud enables NATO to process and share electromagnetic data at the speed of operational demand. As used here, the EW Cloud follows the NATO Industrial Advisory Group (NIAG) SG-299 standard. It is not merely a centralised, commercial-style cloud for computing or storage. The proposed EW Cloud is a distributed, federated EW architecture spanning backend, fog, and edge environments, designed to store, process, share, and exploit EW-relevant data and services in near-real-time.
Rather than replacing national EW systems or sovereign capabilities, the EW Cloud functions as an architectural hub. It connects existing sensors, mission-data repositories, and EW services within a shared operational framework. By applying cloud principles across backend, fog, and edge environments, the EW Coud enables processing, sharing, and exploitation of electromagnetic data at the speed required by contemporary operations.4 This enables SEAD to operate continuously rather than as a single, preplanned event. Standardised interfaces allow NATO and selected Partner Nations to transmit and integrate data with additional domain- or nation-specific clouds. By aggregating electromagnetic observations from multiple platforms, a shared analytical environment enables earlier more confident identification of changes in adversary behaviour.5
Additionally, cloud-enabled EW architectures are essential to achieving NATO Multi-Domain Operations (MDO). NATO’s challenge is not a lack of technology; many enabling components already exist at the national level. The real issue is whether NATO can adapt EW structures, information flows, and decision-making processes to the demands of an increasingly contested spectrum.6 Cooperative Electromagnetic Support Measure Operations (CESMO)-integrated EW services share and refine observations as the operational scenario unfolds.7 This enables near-real-time threat detection and localisation, enhances tactical awareness, and reduces response times. With a federated EW Cloud architecture in place, SEAD could evolve from static suppression into dynamic threat management.
Visualising the Battlespace EMS Picture
In a contested Electromagnetic Environment (EME), C2 depends upon access to a coherent Recognised Electromagnetic Picture (REMP). Rather than treating electromagnetic activity as a separate technical layer, a REMP reframes emissions as operationally relevant information, visible, shareable, and actionable within the same C2 cycle as manoeuvre and fires. It allows commanders to understand who is emitting, where, and with what effect, alongside manoeuvre, fires, and information activities.8
Without a comprehensive picture of the battlespace, commanders risk making decisions based on incomplete, outdated, or fragmented electromagnetic information. Once constituted, he REMP can be integrated into a future Common Operational Picture (COP).9 When the REMP is visualized through the COP, dispersed EMS observations become a decision-grade overlay that compresses the sensor-decider-effector cycle, enabling NATO forces to identify, prioritize, and engage targets under tight time windows.
The EW Cloud achieves this not only through enhanced real-time targeting, but also by structuring, correlating, and governing access to EW-relevant data so it can be fused and displayed at the tempo of operations. The EW Cloud could support this by processing current observations alongside validated mission and emitter data, producing timely, releasable updates for EMSO planning and execution.10 Over time, retaining and comparing historical patterns helps refine emitter characterisation and reduce relearning across deployments. This improves mission data preparation and training realism, enabling the Alliance to tailor employment to the threat. The real-time presentation of pertinent EW data, enabled by the federated architectural backbone of the EW Cloud, allows commanders and operators to sense, make sense, and act at the speed of relevance.
Enabling Effective SEAD Against Adaptive IADS
Counter Anti-Access and Area Denial (C-A2AD) and the SEAD mission represent the most compelling use cases for the EW Cloud. Modern IADS expose the limitations of static, platform-centric suppression approaches used to counter adversary A2AD networks. In contemporary MDO, SEAD is no longer exclusively an air mission; it has become a multi-domain function. The EW Cloud should be understood as an enabling architecture rather than as a substitute for command. Its role is to help collect, fuse, and distribute electromagnetic data. This supports the generation of a coherent REMP, makes information available to planners and operators, and enables faster coordination and mission adjustment. In the opening phase of the 2025 Israel-Iran confrontation, operational advantage did not stem from a single platform, but from the rapid integration of electromagnetic effects, information flows, and a responsive defensive posture.11 For NATO, the lesson is that future SEAD effectiveness will increasingly depend on how quickly electromagnetic observations are fused, released, and translated into coordinated action across domains. For SEAD missions, the EW Cloud enables a shift from reactive, platform-centric actions to coherent, effects-based operations across the kill chain. Forces can continually reassess and address threats throughout a campaign rather than relying on a single preplanned suppression event. This shift supports ongoing operations rather than isolated missions. This approach sustains credible access to contested airspace and increases platform survivability against adaptive IADS.
Risks and Limitations of an EW Cloud
At Alliance level, the most distinctive challenges lie in sovereignty, releasability, and policy constraints on data sharing. Integrating diverse systems across Allied nations requires common standards and sustained governance to facilitate efficient data exchange. Moving sensitive EW data into a cloud environment introduces real cybersecurity risks. Systems must remain protected against attack, data loss, and unauthorised access, even at the tactical edge, with clear data-sharing and releasability rules to ensure usability without compromising security or sovereignty. EW systems must also continue to operate despite communications denial and degradation. In practice, this means that processing and decision support must remain available at or near the tactical user. Platforms and units can continue to classify, prioritise, and act on electromagnetic data even when reach-back connectivity is degraded or denied. Finally, network delays, limited bandwidth, and interoperability gaps can affect real-time signal processing. Redundancy, prioritised data exchange, and strong security controls are therefore essential as the architecture scales.12
Recommendations
Implementation of an EW Cloud already aligns with NATO’s EMSO doctrine and MDO concept, both of which emphasise cross-domain integration and decision advantage through timely, synchronised effects.13 NATO should prioritise the following steps to translate the EW Cloud concept into an operational advantage:
- NATO HQ, with support from ACT and ACO, should embed the EW Cloud within existing EMSO, SEAD, and MDO constructs by issuing Alliance-level architectural guidance and an accompanying implementation annex. These should establish minimum interoperability and data standards and explain how EW Cloud services are incorporated into EMSO and SEAD planning and execution for planners and capability developers.
- NATO HQ International Staff and International Military Staff, working with the Nations, should establish clear governance for how electromagnetic data is shared and used in a federated EW Cloud. This requires practical arrangements for security, releasability, and data ownership, including measures that accommodate CESMO-enabled partners without weakening national control of sensitive information.
- ACT, with JWC, JFTC, and the Nations, should integrate EW Cloud workflows into synthetic and LVC training environments, where threat waveforms, release conditions, and data sensitivities can be replicated more fully than in live training. Because many relevant threat waveforms, coalition release conditions, and data sensitivities cannot be fully replicated in live training, experimentation should also use synthetic environments and, where appropriate, live, virtual, and constructive (LVC)-enabled environments.
- ACT, in coordination with relevant Centres of Excellence and with Nations’ support (via Warfare Centres, etc.), should establish processes to retain and analyse historical electromagnetic data to support mission data preparation, threat modelling, and tactics, techniques, and procedures (TTP) refinement.
Conclusion
In a large-scale and heavily contested environment, NATO’s ability to operate effectively depends less on individual platforms and more on how quickly forces share electromagnetic information. Without federated approaches such as an EW Cloud, Alliance forces risk remaining tied to static mission data and fragmented information flows, increasing their vulnerability to adaptive adversaries and slowing the decision cycle. Implemented as a federated enabling architecture, an EW Cloud can connect EMSO, SEAD, and wider MDO processes, enabling shared awareness, faster decision-making, and coordinated cross-domain action, thereby turning discrete tactical activities into a coherent campaign advantage.
