Emerging Strategic Weapons and Technologies

Introduction

Technological change is transforming the character of strategic competition. Traditional nuclear strategy focused heavily on nuclear weapons, ballistic missiles, submarines and strategic bombers. Contemporary strategic competition increasingly involves cyber capabilities, artificial intelligence, autonomous systems, hypersonic weapons, space systems, advanced missile defences, directed-energy technologies and other emerging capabilities.

These technologies can affect deterrence and strategic stability even when they are not nuclear weapons themselves. They may alter the speed of military decision-making, increase uncertainty, threaten command and control systems or create new forms of escalation.

The term emerging strategic technologies therefore covers technologies that can significantly influence the military balance, strategic decision-making or survivability of national security systems.

Core Concepts

Emerging Strategic Technologies

These are developing or rapidly advancing technologies with potential consequences for strategic security, deterrence, military power or international stability.

Major categories include:

• Artificial intelligence
• Autonomous weapons
• Hypersonic weapons
• Cyber capabilities
• Space systems
• Advanced missile defence
• Quantum technologies
• Directed-energy weapons
• Biotechnology
• Advanced sensing and surveillance

Hypersonic Weapons

Hypersonic weapons are weapons capable of travelling at speeds above Mach 5 while possessing characteristics that can make their trajectories or maneuverability difficult to predict.

Two broad categories are often discussed:

Hypersonic Glide Vehicles

These are launched to high altitude and then glide toward their targets while potentially maneuvering.

Hypersonic Cruise Missiles

These use air-breathing propulsion during flight and operate at hypersonic speeds.

Hypersonic Glide Vehicle

A hypersonic glide vehicle, or HGV, is launched by a rocket or other booster and then travels through the atmosphere at hypersonic speeds while maneuvering.

Their potential strategic significance relates partly to:

• Speed
• Maneuverability
• Lower or variable flight paths
• Reduced warning time
• Difficulty of interception

Hypersonic Cruise Missile

A hypersonic cruise missile, or HCM, is a powered missile designed to sustain hypersonic flight, often using advanced propulsion systems.

Boost-Glide Systems

Boost-glide systems combine a rocket boost phase with a later glide phase.

The basic sequence is:

Rocket boost → Separation → Atmospheric glide → Maneuvering → Target

Maneuverability

Maneuverability refers to the ability of a weapon or vehicle to change its trajectory during flight.

Greater maneuverability can complicate detection and interception because defenders cannot rely solely on predictable ballistic trajectories.

Missile Defence

Missile defence involves systems designed to detect, track and intercept incoming missiles.

It can include:

• Early-warning radars
• Space-based sensors
• Interceptor missiles
• Command systems
• Tracking networks

The relationship between offensive missiles and defensive systems can influence strategic stability.

Prompt Global Strike

Prompt Global Strike refers to the concept of developing capabilities capable of rapidly striking targets anywhere in the world using conventional weapons.

The concept is strategically significant because highly capable conventional systems may affect nuclear deterrence calculations.

Artificial Intelligence and Strategic Stability

Artificial intelligence, or AI, can affect strategic security through:

• Intelligence analysis
• Target recognition
• Early warning
• Cyber operations
• Autonomous systems
• Decision support
• Logistics
• Military planning

The integration of AI into strategic systems raises questions about reliability, human control, accountability and escalation.

AI Decision Support

AI decision support refers to systems that analyze large amounts of information and provide recommendations to human decision-makers.

The strategic concern is that decision-makers may become overly dependent on automated assessments, especially during crises.

Autonomous Weapons

Autonomous weapons systems are weapons capable of performing certain functions with varying degrees of independence from direct human control.

Autonomy can involve:

• Navigation
• Target detection
• Target selection
• Engagement
• Movement

The level of autonomy differs across systems.

Human-in-the-Loop

Human-in-the-loop systems require a human to authorize particular actions, especially the use of lethal force.

Human-on-the-Loop

Human-on-the-loop systems allow autonomous operations but provide human oversight and the possibility of intervention.

Human-out-of-the-Loop

Human-out-of-the-loop systems operate without direct human intervention in the relevant decision or action.

These concepts are central to debates concerning autonomous weapons and responsible military use of AI.

Cyber Warfare

Cyber warfare refers to the use of cyber capabilities in conflict to disrupt, degrade, manipulate or destroy digital systems.

Potential strategic targets include:

• Military networks
• Communications
• Energy infrastructure
• Financial systems
• Transportation systems
• Command and control networks

Cyber Deterrence

Cyber deterrence involves attempts to discourage hostile cyber activity through denial, punishment, resilience or signaling.

Cyber deterrence is complicated by attribution problems because identifying the source of a cyberattack can be difficult.

Space Security

Space security concerns the protection and reliable operation of space-based systems and the prevention or management of conflict involving outer space.

Modern militaries depend on space systems for:

• Communications
• Navigation
• Intelligence
• Missile warning
• Weather monitoring
• Timing

Anti-Satellite Weapons

Anti-satellite weapons, or ASATs, are systems designed to interfere with, disable or destroy satellites.

They can be:

• Kinetic
• Electronic
• Cyber
• Directed-energy based

The destruction of satellites can produce strategic and environmental consequences.

Space-Based Sensors

Space-based sensors can provide:

• Missile warning
• Intelligence
• Surveillance
• Navigation
• Tracking

Their role is increasingly important for strategic stability.

Quantum Technologies

Quantum technologies use principles of quantum physics to develop capabilities with potential applications in computing, communications, sensing and cryptography.

Strategic applications may include:

• Quantum sensing
• Quantum communications
• Quantum computing
• Cryptographic applications

Quantum Computing

Quantum computing uses quantum-mechanical principles to process information in ways fundamentally different from conventional computing.

Its potential impact on cryptography is particularly significant because sufficiently capable quantum computers could threaten some widely used public-key cryptographic systems.

Quantum Sensing

Quantum sensing involves highly sensitive measurements using quantum phenomena.

Potential military applications include:

• Navigation
• Detection
• Gravity mapping
• Magnetic sensing
• Precision measurement

Directed-Energy Weapons

Directed-energy weapons use concentrated electromagnetic energy or other directed energy to damage, disable or disrupt targets.

Potential categories include:

• High-energy lasers
• High-power microwave systems

Electronic Warfare

Electronic warfare, or EW, involves the use of electromagnetic energy to sense, protect, disrupt or attack electronic systems.

Three broad categories are commonly identified:

Electronic Support

Detecting and analyzing electromagnetic activity.

Electronic Attack

Disrupting or degrading adversary systems.

Electronic Protection

Defending one’s own systems against electronic attack.

Biotechnology and Strategic Security

Biotechnology can influence strategic security through advances in:

• Medical science
• Genetic technologies
• Biological detection
• Synthetic biology
• Agricultural biotechnology

The dual-use nature of biotechnology creates both opportunities and security challenges.

Dual-Use Emerging Technologies

Many emerging technologies are dual-use, meaning they can support both civilian and military applications.

Examples include:

• Artificial intelligence
• Satellites
• Drones
• Biotechnology
• Quantum computing
• Advanced semiconductors

This makes export controls and international governance particularly difficult.

Strategic Technologies and Escalation

Emerging technologies may affect escalation by changing:

• Warning times
• Attribution
• Survivability
• Decision speed
• Targeting accuracy
• Command and control
• Perceptions of vulnerability

A technology may therefore have strategic effects even without being classified as a strategic weapon.

Decision-Time Compression

Decision-time compression occurs when technological developments reduce the amount of time leaders have to assess information and make strategic decisions.

High-speed missiles, cyberattacks and automated warning systems can create pressure for rapid responses.

This can increase the importance of reliable communication and human judgment.

Entanglement

Strategic entanglement occurs when conventional and nuclear capabilities, or civilian and military systems, become technologically interconnected in ways that make it difficult to determine how an attack will affect strategic stability.

For example, an adversary may attack a dual-use satellite believing it is a conventional military target while the affected state perceives the attack as threatening a nuclear command or warning system.

Cross-Domain Escalation

Cross-domain escalation occurs when conflict moves between different domains, such as:

Cyber → Space → Conventional → Nuclear signaling

Actions in one domain can therefore create consequences in another.

Technology Competition

Strategic competition increasingly involves competition over:

• Semiconductors
• Artificial intelligence
• Quantum technology
• Space systems
• Telecommunications
• Robotics
• Biotechnology
• Advanced manufacturing

Technological capabilities can influence both economic power and military power.

Semiconductor Security

Semiconductor security concerns the strategic importance of reliable access to advanced semiconductor technologies and manufacturing capabilities.

Semiconductors are essential to:

• Artificial intelligence
• Communications
• Weapons systems
• Vehicles
• Data centres
• Satellites
• Consumer technologies

Strategic Autonomy in Technology

Technological strategic autonomy refers to the ability of a state or group of states to maintain access to critical technologies without excessive dependence on external suppliers.

It can involve:

• Domestic research
• Manufacturing capacity
• Supply-chain diversification
• Technology partnerships
• Export controls

Emerging Technology Governance

Emerging technology governance involves national and international efforts to establish rules, standards, norms and institutions for technologies with significant societal or security implications.

Key governance questions include:

• Who controls the technology?
• What uses should be prohibited?
• What level of human oversight is required?
• How should accidents be addressed?
• How can dual-use technologies be managed?
• What verification mechanisms are possible?

Key Distinctions

Ballistic vs Hypersonic Glide Weapons

Traditional ballistic missiles follow largely predictable trajectories after the boost phase, while hypersonic glide vehicles can maneuver during atmospheric flight.

AI vs Autonomous Weapons

AI is a broad technological field. Autonomous weapons are weapon systems capable of performing certain functions with varying degrees of independence.

Cyber Warfare vs Electronic Warfare

Cyber warfare primarily targets digital information systems and networks. Electronic warfare operates through the electromagnetic spectrum.

Space Security vs Space Warfare

Space security covers the protection and peaceful or stable use of space systems. Space warfare refers to hostile military activities involving space capabilities.

Technology Competition vs Arms Race

Technology competition is broader and can involve civilian, economic and military capabilities. An arms race specifically concerns competitive military buildup.

Key Terms at a Glance

Related Glossaries

• Nuclear Weapons and Nuclear Strategy
• Nuclear Deterrence and Strategic Stability
• Nuclear Proliferation and Non-Proliferation
• Nuclear Disarmament and Arms Control
• NPT, CTBT and Nuclear Institutions
• International and National Security
• Human Security and Non-Traditional Security
• Security Dilemma and Strategic Stability
• Hybrid Warfare and Grey-Zone Competition
• Artificial Intelligence and Global Affairs
• Cybersecurity and Cyber Warfare
• Digital Governance and Digital Sovereignty
• Technology Competition and Semiconductor Geopolitics
• Space Politics and Space Security
• Autonomous Weapons and Future Warfare

Conclusion

Emerging strategic technologies are changing the relationship between military power, deterrence and international security. Hypersonic weapons can affect warning time and missile defence calculations, AI can influence decision-making and autonomous systems, cyber capabilities can threaten critical infrastructure and command networks, while space and quantum technologies are becoming increasingly important to strategic competition. Because many of these technologies are dual-use, their governance requires a combination of national policies, international cooperation, technological safeguards, transparency and strategic dialogue.