Model UN Background Guide

Committee: Disarmament and International Security Committee (DISEC/GA1)
Topic: Outer-space Weaponization
Conference Year: 2026

1. Topic Background

Outer-space weaponization refers to the development, testing, and deployment of weapons systems in or targeting outer space. This issue has been a concern since the Cold War era, when the United States and the Soviet Union began exploring the military potential of space. The 1967 Outer Space Treaty (OST) established space as a global commons and prohibited placing nuclear weapons or other weapons of mass destruction in orbit or on celestial bodies. However, it did not explicitly ban conventional weapons or anti-satellite (ASAT) weapons, leaving significant legal ambiguity.

In recent years, outer-space weaponization has re-emerged as a critical international security issue due to rapid advancements in space technology, the increasing number of space-faring states, and the growing reliance on satellites for military, economic, and civilian purposes. The development of kinetic ASAT weapons, directed-energy weapons, and cyber capabilities targeting space assets has heightened fears of a new arms race beyond Earth’s atmosphere.

The agenda for DISEC in 2026 reflects escalating tensions in space security. The 2020s have seen multiple ASAT tests by major powers, debris generation threatening the sustainability of space operations, and a lack of comprehensive international norms to regulate military activities in space. The weaponization of outer space threatens not only global security but also the peaceful use of space for scientific, commercial, and humanitarian purposes. This urgency has pushed the United Nations to prioritize the topic once again.

2. Key Actors

States:

• United States: A leading space power with advanced military space capabilities, including ASAT tests and space-based missile warning systems. The U.S. advocates for responsible behavior in space but prioritizes maintaining strategic superiority.
• Russia: Historically a major space and military power, Russia has conducted ASAT tests and promotes arms control but also emphasizes national security interests in space.
• China: Rapidly expanding its space capabilities, China has demonstrated ASAT capabilities and advocates for a treaty banning space weapons, though it continues to develop dual-use technologies.
• India: Emerging as a significant space power with demonstrated ASAT capabilities, India supports peaceful uses of space but also prioritizes national defense.
• European Union (EU) Member States: Many EU countries emphasize multilateral arms control, transparency, and the peaceful use of outer space, often advocating for binding norms and confidence-building measures.
• Other spacefaring nations: Japan, Israel, South Korea, and the United Arab Emirates are increasingly involved in space security discussions, balancing commercial interests and defense concerns.

International Organizations:

• United Nations Office for Outer Space Affairs (UNOOSA): The UN entity responsible for promoting international cooperation in the peaceful use of outer space and implementing space law.
• Conference on Disarmament (CD): The primary multilateral disarmament negotiating forum, where discussions on space weapons have historically stalled.
• International Telecommunication Union (ITU): Regulates satellite orbits and frequencies, indirectly related to space security.
• The Committee on the Peaceful Uses of Outer Space (COPUOS): Focuses on space law and the peaceful use of outer space, including sustainability issues.

3. Bloc Positions

1. The Western Bloc (United States, Canada, EU, Japan, Australia):

• Generally supports maintaining space as a domain for peaceful use but recognizes the need to develop defensive space capabilities.
• Opposes legally binding treaties that could constrain national security space programs, favoring voluntary norms, transparency, and confidence-building measures.
• Advocates for responsible behavior and debris mitigation to preserve space sustainability.

2. The Eastern Bloc (Russia, China, Belarus, North Korea):

• Calls for legally binding treaties banning the placement of weapons in outer space, including ASAT weapons.
• Emphasizes the prevention of an arms race in outer space (PAROS) and demands greater regulation of U.S. and allied space military activities.
• Supports transparency but is skeptical of voluntary norms without enforcement mechanisms.

3. The Non-Aligned and Developing Countries (India, Brazil, South Africa, ASEAN countries):

• Generally promote the peaceful use of outer space and the prevention of weaponization but balance national security interests.
• Support strengthening the Outer Space Treaty framework and COPUOS’s role.
• Call for equitable access to space resources and technology transfer to developing countries.

4. The Commercial and Emerging Space Actors (United Arab Emirates, Israel, private sector stakeholders):

• Focus on the protection of commercial satellites and space infrastructure.
• Advocate for clear regulations to prevent conflict and debris that could disrupt commercial operations.
• Often favor pragmatic, technologically adaptive approaches rather than rigid arms control.

4. Past UN Action

• Resolution 1976 (XVIII) (1963): Calls for the peaceful use of outer space and prevention of an arms race in space.
• Resolution 2222 (XXI) (1966): Supports the Outer Space Treaty and the prohibition of nuclear weapons in orbit.
• Resolution 68/74 (2013): Addresses the prevention of an arms race in outer space (PAROS) and calls for transparency and confidence-building measures.
• Resolution 75/36 (2020): Emphasizes the importance of space debris mitigation and responsible behavior in outer space.
• Annual reports of the Secretary-General on developments in outer space: Provide updates on space security, weaponization risks, and international cooperation efforts.
• Conference on Disarmament efforts: Multiple attempts to negotiate a PAROS treaty have failed due to disagreements on verification and scope.

5. Questions a Resolution Should Answer

1. How can the international community effectively prevent the deployment of weapons in outer space without hindering peaceful uses?
2. What mechanisms can be established to enhance transparency and confidence-building among spacefaring states?
3. How should the UN address the dual-use nature of many space technologies that have both civilian and military applications?
4. What role should the UN and its specialized agencies (e.g., UNOOSA, COPUOS) play in monitoring and verifying compliance with outer space arms control measures?
5. How can the international community mitigate the risks posed by space debris generated by ASAT tests or other military activities?
6. What measures can ensure equitable access to outer space resources and technology transfer to developing countries?
7. How can emerging space actors and private companies be integrated into a regulatory framework to prevent weaponization and ensure the sustainability of space?

6. Further Reading

• UN Documents: Official resolutions, Secretary-General reports on outer space developments, and records from COPUOS and the Conference on Disarmament provide authoritative insight into the legal framework and ongoing diplomatic efforts. These documents offer primary source material on international consensus and divergences.
• Think-Tank Reports: Research from institutions such as the Secure World Foundation, the Stimson Center, and the Center for Strategic and International Studies offers detailed analyses of space security challenges, technological trends, and policy recommendations. These reports often include scenario planning and technical assessments.
• News Outlets and Journals: Reputable international news organizations (e.g., BBC, Reuters, The Diplomat) and specialized publications (e.g., SpaceNews, Defense One) provide current updates on state activities, emerging technologies, and geopolitical developments in space. These sources help contextualize the issue in real-time diplomacy and security dynamics.

This background guide aims to equip delegates with a comprehensive understanding of the complexities surrounding outer-space weaponization, enabling informed debate and constructive resolution drafting in DISEC 2026.