For many years, sovereignty has been framed as having full ownership of satellites, ground infrastructure, and the networks that connect them. That definition is becoming harder and harder to maintain. Today, military operations do not take place solely within national boundaries or national architectures, instead, they take place in hybrid communications ecosystems, contested environments, and coalitions. In those environments, sovereignty is no longer measured by how much of the stack a government owns but measured by how much of the architecture it controls. A key component of modern strategic planning is this distinction. As Keith Blanchet, Vice President of International Sales at ST Engineering iDirect, share in today’s strategic reality “sovereignty nowadays cannot exist without interoperability.”
The Limits of Full Sovereignty
Sovereignty, at its broadest definition, is a fully national, end-to-end system that is designed, delivered, and operated domestically. But as Ali Grey, Associate Partner at PA Consulting stated, very few nations can afford that model and even fewer can sustain it over the life of modern technology refresh cycles.
What has emerged is a more practical definition of sovereign capability, which includes confidence that communications can withstand disruption, control over mission-critical layers, and resilience across multiple failure points.
That means sovereignty is increasingly multi-dimensional, covering operational independence, data security, supply chain assurance, cyber control, and trusted crypto. Additionally, it also means national governments must deliberately differentiate between what can be sourced commercially and what must remain sovereign.
Interoperability Is Not Optional
Interoperability is a requirement for most defense organizations. The ability to connect across geographies, vendors, and architectures is essential for cross-domain missions, coalition operations, and multinational command structures. Although closed systems can provide some level of national control, they can also become operational risks.
Blanchet captured this risk, “if you create a silo today that will not be able to evolve with technology as it moves forward, you’ll fall behind.”
The solution to this is a standards-based, open approach to interoperability. They maintain flexibility, reduce vendor lock-in, and allow countries to adapt as alliances, technologies, and geopolitical circumstances evolve.
Resilience Through Multi-Layered Diversity
This shift is clear with the rise of hybrid and multi-orbit architectures.
No single orbit, whether LEO, MEO, or GEO, can meet all the needs of today’s military organizations. It is also not possible to treat satellite and terrestrial systems as discrete domains. Resilience depends on layered connectivity: multiple orbits, multiple operators, and multiple pathways. Or, as Grey put it, “there is resilience in diversity.”
Diversity is especially important for smaller nations. Sovereign capability is less about creating standalone systems and more about avoiding dependency, diversifying providers, and architectures.
Managing Risk in a Contested Environment
As the threat environment continues to expand and diversify, supply chain disruption, cyberattacks, spoofing, and jamming are ongoing threats to communications infrastructure. At the same time, the complexity of modern networks is surpassing the capabilities of traditional detection, deterrence, and threat management methods.
To manage this complexity, software defined architectures and AI-driven orchestration have become essential because they enable dynamic routing, threat detection, and real-time decision support across increasingly fragmented environments.
The hard part isn’t the technology; it’s the decisions that must be made first. Governments need to be clear about what data must remain sovereign, who and what they trust, and how systems should behave when things go wrong. These choices determine how the system is built.
Redefining Sovereignty for the Next Decade
It’s clear that sovereignty is entering a new phase, one shaped by control, resilience, and interoperability rather than ownership. Governments and defense agencies are going beyond traditional definitions of sovereign versus non-sovereign systems as technology evolves and alliances become more complex. The focus is shifting from determining what must be controlled, what can be shared, and how those decisions are reflected in system architecture and policy.
This new definition is an ongoing process rather than a final goal. The nations best positioned for this new phase are those with the clearest understanding of what they must control, who they trust, and how their systems should perform when it matters most, not those with the largest budgets.