'Space being weaponised': A purely civilian system can be 'repurposed' for military capabilities
Erin Ogunkeye is pleased to welcome Mélusine Lebret, Researcher in the Defence, Security & Justice research group at RAND Europe. According to Lebret, the growing militarisation of space cannot be understood simply by asking whether a satellite is civilian, military, or a “weaponised.” And Lebreton argues that militarization does not eliminate the necessity of cooperation. The emerging space-security order is therefore defined by an unusual tension: states may increasingly prepare to compete and potentially fight in space while remaining structurally dependent on one another to keep space usab

The Blurred Lines of Orbital Security
The rapid expansion of space-based infrastructure has ushered in a new era of geopolitical complexity, where the distinction between civilian and military assets is increasingly difficult to discern. As nations and private entities launch a growing number of satellites for communications, navigation, and environmental monitoring, these same systems are frequently being repurposed for intelligence and defense functions. This phenomenon, known as the 'dual-use' conundrum, has created a volatile environment where ambiguity serves as a strategic tool, complicating international efforts to maintain stability in the final frontier.
Mélusine Lebret, a researcher at RAND Europe specializing in space governance and defense, argues that the traditional binary classification of space assets is no longer sufficient to describe the current security landscape. The integration of commercial and military capabilities means that a satellite designed for weather forecasting or telecommunications can, with minimal modification or software updates, support military operations. This entanglement creates a domain where the intent behind a satellite's movement or signal is often opaque, leading to heightened risks of miscalculation and unintended escalation between major powers.
The Strategic Utility of Ambiguity
In the modern space domain, ambiguity is not merely an accidental byproduct of technological progress; it is a deliberate feature of contemporary defense strategy. By utilizing dual-use systems, states can enhance their military posture without the immediate political or diplomatic fallout associated with deploying dedicated, overt weapon platforms. This 'gray zone' activity allows nations to maintain a persistent presence in orbit while keeping their true capabilities hidden behind a veil of civilian utility.
As space assets increasingly serve dual-use purposes, the growing entanglement of commercial and military satellites and other infrastructures is creating a domain where ambiguity is not only a feature, but a weapon.
This strategic opacity poses a significant challenge for international regulators and military planners alike. When a satellite's function is unclear, observers may interpret benign maneuvers—such as proximity operations for maintenance or debris removal—as hostile acts. Such misinterpretations can trigger a cycle of reactive posturing, where nations feel compelled to harden their own assets or develop counter-space capabilities, ultimately accelerating the militarization of the orbital environment.

Governance in an Era of Dual-Use
The lack of a unified international framework to govern dual-use systems remains a primary obstacle to long-term space security. Current international treaties, largely drafted during the Cold War, were not designed to address the nuances of private-sector involvement or the rapid technological shifts that define today's space economy. As private actors become more central to space operations, the traditional state-centric model of governance is struggling to keep pace with the reality of commercial-military integration.
Experts emphasize that the solution lies not in banning dual-use technology, which is essential for economic and scientific progress, but in establishing norms of responsible behavior. By fostering transparency and creating channels for communication between space-faring nations, the international community could mitigate the risks of miscalculation. However, achieving consensus on these norms is difficult, as major powers remain wary of revealing their strategic advantages or limiting their freedom of action in a domain they view as critical to national security.
The Future of Cooperation and Competition
Despite the rising tensions, the necessity for cooperation in space remains as vital as ever. The global reliance on space-based services for everything from financial transactions to disaster response means that a conflict in orbit would have catastrophic consequences for life on Earth. The challenge for policymakers is to balance the competitive drive for military dominance with the collective need to preserve the safety and sustainability of the space environment for all users.
Moving forward, the focus must shift toward developing technical and diplomatic mechanisms that can distinguish between peaceful activities and genuine threats. This includes investing in better space situational awareness and promoting international dialogue on the definition of 'hostile' behavior in orbit. As the space domain continues to evolve, the ability to navigate the duality of these systems will be the defining test of 21st-century space diplomacy and global security.
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