Space: the fourth frontier of war
What do a missile, a frigate, and a fighter jet have in common? It’s the sky above them! CDS General Anil Chauhan had put forward– “Space is emerging as a new domain of warfare, and it is going to dominate warfare. All the three primary elements of warfare (land, sea and air) will depend on space.”
Meaning of weaponisation of space
Development, deployment of weapons in outer space or heavenly bodies or use of technologies with motive to attack, disrupt and destroy satellites and other space based systems.
Examples of space weaponisation: placement of orbital or sub-orbital satellites to attack enemy satellites, the use of ground based ascent missiles to shoot space jets, jamming signals sent from enemy satellites.
Why did weaponisation of space come into focus?
a) The historical events calling for weaponisation of space-
· Sputnik-1 (1957) : beginning of space age
· Cold War (1960-1980): US-USSR competition wherein space was used for military communication, surveillance and reconnaissance
· Outer Space Treaty (1967): suggested peaceful use of space and banned weapons of mass destruction in orbit.
· 1980 onwards: development of Anti-Satellite (ASAT) capabilities
· China, 2007– ASAT Test destroyed a satellite resulting in large amount of space debris
· India, 2019– India demonstrated ASAT capabilities via Mission Shakti
· 2020s– US, China and Russia developed advanced counter space capabilities. For example- co-orbital technologies, direct energy systems, etc.
b) The present context-
· 2026 à US has acknowledged the presence of “on-orbit space control weapons” à raised concern over growing military competition in space.
· Development of Anti-satellite technology à counter space capability of a country to neutralize space based assets of enemy country
· Risk of Space Arms Race and Space Debris
· Renewed call for Prevention of an Arms Race in Outer Space (PAROS) and strong international norms
Rise of Weaponisation of Space:
Challenges associated:
1. Kessler Syndrome and orbital debris: ASAT attacks create debris that can trigger chain collisions making orbits unsafe.
Example- China’s 2007 ASAT test created thousands of debris fragments
2. Escalation and Miscalculation: A cyber attack, jamming or satellite failure may be mistaken for an act of war escalating conflicts
3. Threats to civilian infrastructure: Attacks on satellites can disrupt banking, aviation, navigation, weather forecasting and disaster management
4. Dual-use technology dilemma: Peaceful technologies like satellite servicing and refueling can also be used to capture or disable satellites
5. Space arms race: growing competition in ASATs, jammers and counter space weapons can fuel an arms race and strategic instability
6. Weak global governance: existing space laws have gaps in regulating counter-space weapons, ASAT tests and responsible behaviour.
7. Economics and developmental costs: Rising military spending in space can divert resources from peaceful exploration, research and civilian applications of space technology.
Global efforts to prevent space weaponisation:
1. Outer Space Treaty, 1957: Bans weapons of mass destruction in orbit and military installations on celestial bodies while ensuring space remains open for peaceful use.
2. Prevention of Arms Race in Outer Space: UN led efforts to prevent an arms race in outer space and address gaps in existing legal frameworks
3. Transparency and Confidence Building Measures: to reduce mistrust and miscalculations
4. Liability and registration Regime: The Liability (1972) and Registration (1975) Conventions establish responsibility for space objects and improve accountability.
5. UN led norms: Efforts are underway to develop responsible behaviour norms for safer and sustainable space activities
India’s approach to Space Security:
· Mission Shakti (2019): Demonstrated India’s ASAT capability, making it the fourth country to conduct such a test.
· Defense Space Agency: Strengthens tri-service coordination for space based communication, surveillance and defence
· Mission DefSpace: promotes indigenous space defence technologies and innovative solutions for the armed forces
· Project NETRA and IS4OM: strengthens Space Situational Awareness and helps track space objects and collision risks
· Space resilience: Focus on protecting satellites from jamming, cyber attacks and other counter-space threats.
· Peaceful and sustainable use: India supports the peaceful use of outer space, debris mitigation and international cooperation.
Conclusion:
“Ensuring that strategic competition does not destroy our shared orbital commons is the future of space security, not turning space into a battlefield.”
Unchecked weaponization poses a threat to an arms race, the escalation of conflict, and the devastation of the orbital environment as space transitions from a support domain to a possible warfighting domain. Therefore, to guarantee that space continues to be a domain of peaceful, sustainable, and shared human progress, strict international regulations, responsible behavior, and efficient space-traffic management are crucial.
Keywords
Weaponisation of Space | Space Militarisation | ASAT Weapons | Counter-Space Technologies | Space Arms Race | Space Security | Space Debris | Kessler Syndrome | Dual-Use Technology | Space Situational Awareness (SSA) | Space Traffic Management (STM) | Outer Space Treaty, 1967 | PAROS | TCBMs | Mission Shakti | Project NETRA | ISOM | Defence Space Agency (DSA) | Space Sustainability | Responsible Behaviour in Space | Peaceful Use of Outer Space | Orbital Commons
