UK Think Tank Advocates for “Orbital Warfare” in Military Doctrine, Urging Shift to Offensive Space Capabilities
A new paper from the Council on Geostrategy, a London-based think tank, asserts that the United Kingdom and its allies must integrate “orbital warfare” into their military lexicon and transition from predominantly ground-based defenses to offensive combat capabilities within Earth’s orbit. The report, titled ‘Embracing orbital warfare’ and authored by Gabriel Elefteriu, Senior Research Fellow in Space Power at the Council, was seen by the UK Defence Journal ahead of its official publication.
The paper fundamentally argues that space has evolved into a practical warfighting domain. It contends that current British and allied policy is hindered by its reliance on what it describes as passive, defensive terms such as ‘space control’ and ‘counterspace operations’. According to Elefteriu, such vocabulary encourages policymakers to remain in their comfort zones, prioritizing what are perceived as cheaper, ground-based electronic warfare, cyber operations, or space domain awareness systems.
However, the analysis posits that the decisive arena for securing spacepower advantage is orbit itself, requiring a focus on direct, in-orbit capabilities. The paper highlights that “sub-threshold orbital warfare”—aggressive operations conducted below the conventional threshold of armed conflict—is already an operational reality. It characterizes these actions as mirroring “grey-zone confrontations” observed in maritime and terrestrial domains, involving routine activities to spy on, harass, and coerce allied space systems.
As an illustration, the paper points to a recent incident involving a formation of Russian spacecraft that reportedly closed in on a Finnish ICEYE radar satellite. This satellite is known to provide intelligence to the Ukrainian Armed Forces. The report notes that such harassment has, at times, prompted allied spacecraft to undertake evasive maneuvers to avoid potential interference or collision.
The study further details the rapid acceleration of Chinese counterspace capabilities. It references a simulation in which a team of Chinese scientists modeled the successful targeting and interception of nearly 1,400 Starlink satellites by 99 Chinese spacecraft within a 12-hour window. This simulation reportedly utilized a new artificial intelligence algorithm capable of re-running different scenarios in under two minutes. The paper states that both Moscow and Beijing view Starlink, SpaceX’s rapidly expanding satellite internet constellation, as a key military threat and are developing in-space capabilities to counter it.
The growing problem of orbital congestion is also emphasized in the paper. It notes a significant increase in active satellites, from just over 3,000 five years ago to more than 16,000 today, with projections anticipating around 100,000 by 2030. The author argues that these rapidly expanding constellations, such as SpaceX’s recently filed 100,000-satellite third-generation constellation, are becoming high-impact military targets. Simultaneously, the increased congestion complicates the tracking of individual spacecraft, offering hostile actors greater opportunities to conceal their activities amidst the burgeoning satellite traffic.
Elefteriu is quoted in the release stating, “The UK and its allies cannot meet a threat they have not named.” He further argues that “Continuing to fold in-orbit combat into overarching concepts like space control and counterspace will keep policy tethered… meanwhile, the decisive arena for securing spacepower advantage is orbit itself, and the key means is hard orbital capability.”
To address these perceived shortcomings, the paper proposes a more precise definition of “orbital warfare.” It suggests confining the term to “spacecraft-on-spacecraft engagements,” understood as the employment of space-based assets to control the space domain through in-orbit kinetic (physical impact) or non-kinetic (electronic interference, cyber attack) effects, as well as through movement and maneuver.
The Council on Geostrategy recommends several key actions:
- **Formal Integration:** The term “orbital warfare” should be formally integrated into British and allied military doctrine as a core mission for national spacepower, mirroring how terms like ‘surface warfare’ are used by navies such as the Royal Navy.
- **Prioritized Funding:** There should be prioritized funding for assets capable of agile, sustained maneuver in orbit.
- **Offensive Posture:** A transition towards a more offensive national space posture is advocated, moving beyond a purely defensive stance.
- **Expanded Tracking:** Enhanced tracking capabilities are recommended to effectively monitor orbital congestion and counter adversarial concealment tactics.
Elefteriu, a former Director of Research and Strategy at Policy Exchange, concludes that clarity in language represents the first act of preparation. He posits that the nations that are willing to name and define this new form of conflict will ultimately be the ones best equipped to prevail within it.
Why This Matters
The Council on Geostrategy’s proposal to formally adopt and prepare for “orbital warfare” signifies a pivotal moment in how nations perceive and engage with space. This advocacy for a proactive, offensive posture in orbit carries profound implications across national security, global economics, and international relations, reflecting a growing understanding that space is no longer solely a domain for peaceful exploration but an increasingly contested frontier.
National Security Implications
Modern militaries are intrinsically reliant on satellite technology for a vast array of critical functions, including secure communications, precision navigation (GPS), intelligence gathering, and early warning systems for missile defense. Any disruption, degradation, or destruction of these space-based assets could severely compromise a nation’s defense capabilities, affecting everything from troop deployment and logistics to the effectiveness of advanced weaponry. The paper’s call for offensive in-orbit capabilities is rooted in a perceived necessity to deter potential adversaries and protect these vital national security assets by establishing the capacity to counter threats directly within space. A failure to adapt to this evolving threat landscape could leave nations strategically vulnerable in a rapidly militarizing domain.
Economic Vulnerability
Beyond military applications, space infrastructure underpins vast sectors of the global economy. Satellite services are indispensable for global communications, internet connectivity, facilitating financial transactions, enhancing weather forecasting, supporting precision agriculture, and managing air traffic control. A widespread attack or even persistent harassment of commercial satellite constellations could trigger catastrophic economic consequences, disrupting supply chains, causing market instability, and severely impacting daily life on a global scale. The emphasis in the report on protecting constellations like Starlink highlights the dual-use nature of many space assets and their increasing vulnerability to state-level threats.
Geopolitical Stability and Arms Race Concerns
Formally embracing “orbital warfare” could mark a significant escalation in the militarization of space. While proponents argue that such a move is a necessary deterrent and a defensive posture against existing threats, critics may view it as an accelerant for a new arms race in space. The development and deployment of offensive space-based weapons could provoke reciprocal actions from rival powers, potentially creating a dangerous feedback loop of escalation. This raises complex international legal and ethical questions regarding arms control, the weaponization of space, and the potential for miscalculation in an already congested and contested orbital environment. Such a shift could transform space into a new flashpoint for international conflict.
International Law and Norms
The concept of “orbital warfare” fundamentally challenges existing international legal frameworks and norms governing space, which have historically emphasized peaceful use. Defining and legitimizing military actions in orbit would necessitate a re-evaluation of these established norms and treaties, such as the Outer Space Treaty of 1967. The paper’s focus on “grey-zone confrontations” and “sub-threshold” activities underscores the current ambiguities in international law regarding what constitutes an act of aggression in space and how nations can respond without inadvertently escalating conflicts. Developing clear doctrines for orbital warfare could either help establish new norms of responsible behavior in space or, conversely, lead to a further erosion of the principle of peaceful space utilization, increasing the risk of conflict.
Technological Imperative and Allied Cohesion
The recommendations outlined in the paper necessitate substantial investment in advanced technological capabilities, including agile, maneuverable space assets, sophisticated artificial intelligence for autonomous operations, enhanced sensor technology, and robust cybersecurity for space systems. This signifies a push for rapid technological innovation, underscoring the ongoing competition among major global powers to achieve technological superiority in space. Moreover, the call for integration into “British and allied doctrine” highlights the critical importance of a unified front among international partners. Developing a shared understanding, common terminology, and a coordinated operational approach to orbital warfare would be essential for effective collective defense and deterrence. This would require close collaboration in intelligence sharing, joint exercises, and potentially the co-development of capabilities, thereby strengthening alliances but also demanding a high degree of strategic alignment on a sensitive and complex issue.
In essence, the Council on Geostrategy’s paper represents more than just a technical military proposal; it is a significant call to action for governments worldwide to confront the evolving reality of space as a potential battlefield. Its adoption would mark a profound shift in how nations perceive and operate in space, with far-reaching consequences for global security, economic stability, and the future of humanity’s access to this vital frontier.