Active research project

Golden Dome: international law, space security, and strategic stability.

An Institute research program examining the legal and strategic implications of proposed space-based missile-defence capabilities, dual-use infrastructure, and counterspace effects.

Independent concept illustration. Not an official U.S. government system diagram.

Project status Primary sources

At a glance

A system-of-systems legal inquiry.

Golden Dome is being studied as a system-of-systems rather than a single weapon. Public materials describe an architecture involving sensors, command-and-control, and terrestrial and space-based interception capabilities.

  • Focus: space law, security law, liability, and strategic stability.
  • Output: public legal and policy report.
  • Status: source review, capability mapping, and legal scoping.
System-of-systems structure
Sensors
Command and control
Interception

Why this matters

Orbital defence affects law, infrastructure, and crisis stability.

Strategic stability

Nuclear deterrence, compressed decision times, crisis instability, pre-emption incentives, and counterspace incentives shape how a defensive architecture may be perceived.

Orbital environment

Debris risk, harmful interference, dual-use ambiguity, and proximity operations can affect peaceful access to outer space.

Civil dependencies

Civilian and commercial space systems increasingly support communications, navigation, timing, disaster response, and economic activity.

Known and unresolved

Separate the public record from non-public design choices.

What the public record establishes

  • Integrated missile-defence architecture.
  • Space-based sensing and interception capabilities.
  • Kinetic and non-kinetic capabilities across domains.

What remains unresolved or non-public

  • Basing modes, quantities, autonomy, and targeting rules.
  • Deployment schedules and selected components.
  • Command arrangements, testing parameters, and target sets.

Legal questions

Questions for analysis, not final Institute conclusions.

01

The Outer Space Treaty does not ban every conventional weapon in Earth orbit.

02

Article IV bans nuclear weapons and other WMD in orbit, with broader celestial-body limits.

03

A defensive label does not determine legal status.

04

Legal assessment depends on design, context, command, use, and effects.

05

A capability may be lawful to research but unlawful to test or use in some ways.

06

Dual-use sensors and command systems can create legal and strategic risk.

07

Existing law may not fully answer conventional orbital-interceptor questions.

Frameworks

Lifecycle and capability analysis.

Research and development

Distinguishes concept development, legal characterization, procurement signals, and technology readiness from deployment or use.

Deployment

Examines basing mode, orbital sustainability, registration, liability, command arrangements, and strategic signaling.

Testing

Assesses debris, interference, notification, target characterization, and environmental risk.

Peacetime operation

Reviews due regard, supervision, dual-use ambiguity, proximity behavior, and civilian dependency risk.

Crisis and armed conflict

Connects capability effects to the UN Charter, law of armed conflict, self-defense, attribution, and escalation dynamics.

Detection and tracking

Space-based sensing, cueing, data fusion, and dual-use surveillance implications.

Physical interception

Kinetic interceptors, debris effects, target status, and proportionality questions.

Directed energy and electronic effects

Reversible interference, damage thresholds, attribution, and warning.

Co-orbital and proximity systems

Inspection, servicing, rendezvous, and counterspace ambiguity.

Decision and control architecture

Autonomy, command authority, escalation control, and accountability.

Stability and offensive potential

How defensive architecture may produce offensive or destabilizing incentives.

Methodology and evidence

Claims move through source, technical, legal, and editorial review.

The project combines legal doctrine, open-source technical research, official materials, treaty text, state practice, academic work, and Institute analysis.

Officially confirmed

Text or facts confirmed by official public sources.

Officially proposed

Plans or architecture elements identified in public planning materials.

Independently assessed

Claims supported by external technical, legal, or academic analysis.

Analytical hypothesis

Institute analysis used for scenario testing and legal scoping.

Material claims in the final report will be sourced, assigned a confidence level, and tracked through an internal claim register and review pathway.

Publication roadmap

From source framework to final report.

  1. 01Research scope and source framework
  2. 02Public background primer
  3. 03Working paper for expert review
  4. 04Legal, technical, and strategic consultation
  5. 05Final Institute report
  6. 06Policy brief and recommendations

Primary sources

Foundational legal and policy materials.

Research participation

Specialist input is invited.

CGI welcomes legal, missile-defence, space-systems, sustainability, deterrence, and strategic-stability expertise.

Join or contact CGI

Related Institute work

Connect the security analysis to treaty and policy context.

Treaty implementationOSTGAP

Provides the treaty-gap and national-implementation context for legal interpretation.

 Research portfolioResearch index

Shows how Golden Dome fits the Institute's wider public research program.

 Due regardArticle IX guide

Frames harmful interference, due regard, consultation, and orbital sustainability questions.

This research is ongoing. No final Institute conclusions have yet been adopted. The material is published for research and policy analysis and does not constitute legal advice.