Drones in Modern Warfare

The prevalent use of drones in modern warfare is a test of India’s Counter-Drone Preparedness. Read here to understand better about the nuances of the drone threat to a country’s security.

The Union Government’s warning regarding possible rogue drone attacks on critical installations along India’s borders highlights a rapidly evolving security challenge.

Recent conflicts in Ukraine, West Asia, the Caucasus, and the Red Sea have demonstrated that inexpensive commercial drones, First-Person View (FPV) drones, loitering munitions, and AI-enabled unmanned systems are fundamentally transforming the nature of warfare.

The traditional dominance of tanks, artillery, and manned aircraft is increasingly being challenged by small, affordable, and highly adaptable drones capable of carrying out surveillance, precision strikes, electronic warfare, and logistics missions.

Consequently, India is accelerating the deployment of advanced counter-drone systems to safeguard vital national assets, border infrastructure, military installations, and civilian facilities.

Threat of Rogue Drones

A rogue drone refers to an unmanned aerial vehicle (UAV) operating without authorisation or employed for hostile purposes.

These may be used for:

• Surveillance and espionage
• Cross-border infiltration
• Arms and narcotics smuggling
• Precision strikes on strategic targets
• Terrorist attacks
• Disruption of critical infrastructure

The increasing availability of commercial drone technology has significantly lowered the barrier to acquiring sophisticated aerial capabilities.

Drones in Modern Warfare

Cost-Effectiveness and Affordability

One of the most important reasons behind the growing use of drones is their exceptional cost-effectiveness.

Comparative Costs

Platform	Approximate Cost
Main Battle Tank	Millions of dollars
Fighter Aircraft	Tens of millions of dollars
FPV Drone	A few hundred dollars
Loitering Munition	Significantly cheaper than missiles

A low-cost drone can destroy equipment worth millions, creating a highly asymmetric battlefield advantage.

Example: In the Russia-Ukraine conflict, commercially modified FPV drones have successfully destroyed tanks, artillery systems, and command posts at a fraction of the cost of conventional weaponry.

Multi-Role Battlefield Capability

Modern drones are no longer limited to reconnaissance.

They perform:

Intelligence, Surveillance and Reconnaissance (ISR)

• Real-time battlefield monitoring
• Target identification
• Border surveillance

Precision Strike Missions

• Destruction of armoured vehicles
• Attacks on ammunition depots
• Neutralisation of command centres

Logistics and Supply

• Delivery of ammunition
• Medical supplies
• Food and emergency equipment

Electronic Warfare

• Signal interception
• Communication disruption
• Electronic intelligence gathering

Operational Adaptability

Drones can be:

• Rapidly manufactured
• Easily modified
• Deployed in large numbers

Unlike traditional military systems requiring years of development, drone technologies evolve within months.

This adaptability provides militaries and non-state actors with unprecedented operational flexibility.

FPV Drones and Loitering Munitions

First-Person View (FPV) Drones

FPV drones allow operators to guide the platform through onboard cameras in real time.

Characteristics:

• Extremely accurate targeting
• Low cost
• Difficult to detect
• Highly maneuverable

Loitering Munitions

Often called “kamikaze drones,” they:

• Search for targets autonomously
• Loiter over battlefields
• Dive into selected targets

Examples include:

• Switchblade
• Lancet
• Harop

These systems blur the distinction between drones and missiles.

Electronic Warfare Resilience

Modern battlefields feature extensive electronic warfare (EW).

Traditionally, drones were vulnerable to:

• Jamming
• Spoofing
• Signal interception

However, new technologies include:

• Fibre-optic guided drones
• Autonomous navigation systems
• AI-assisted targeting
• Anti-jamming communication systems

These innovations significantly enhance survivability.

Persistent Surveillance and Transparent Battlefields

Drone warfare has eliminated many traditional battlefield “blind spots.”

Consequences

• Continuous monitoring of troop movements
• Real-time targeting capability
• Reduced concealment opportunities
• Vulnerability of rear logistics bases

The battlefield has become increasingly transparent, where detection often leads directly to engagement.

Concerns Associated with Drone Warfare

Lower Barrier to Conflict

The affordability of drones allows:

• Terrorist organizations
• Insurgent groups
• Criminal syndicates
• Non-state actors

to access military-grade capabilities previously available only to states.

This intensifies asymmetric warfare.

Escalation Risks

Drone attacks are:

• Relatively cheap
• Politically less risky
• Easily deniable

This lowers the threshold for military escalation and encourages prolonged hybrid warfare.

Threat to Critical Infrastructure

Drones pose a direct threat to:

• Airports
• Ports
• Refineries
• Nuclear facilities
• Military bases
• Power grids
• Communication networks

Even small drones can cause significant disruption if employed strategically.

Swarm Warfare Challenge

One of the most difficult emerging threats is drone swarming.

• Multiple drones attack simultaneously.
• Defences become saturated.
• Traditional missile systems become economically inefficient.

A swarm of inexpensive drones can overwhelm sophisticated air-defence networks.

Detection and Interception Difficulties

Small drones:

• Fly at low altitudes
• Have minimal radar signatures
• Can operate silently
• Blend with civilian air traffic

Conventional air defence systems were not designed to detect such threats.

Ethical and Legal Challenges

Drone warfare raises important questions regarding:

• Accountability
• Civilian casualties
• Autonomous weapons
• Rules of engagement
• International humanitarian law

Current international legal frameworks have not fully adapted to these technological developments.

India’s Counter-Drone Preparedness

Recognising the emerging threat, India has launched several initiatives to build a comprehensive counter-drone ecosystem.

Indian Army’s UAS Technology Roadmap

The Indian Army has unveiled a detailed roadmap covering:

• 30 categories of unmanned systems
• Nearly 80 operational variants

Objectives include:

• Domestic manufacturing
• Large-scale deployment
• Enhanced surveillance capability
• Indigenous innovation

The roadmap provides clear technological goals for defence startups and industry.

Major Drone Acquisition Programme

The Government has approved the procurement of 87 MALE (Medium Altitude Long Endurance) Drones

Benefits:

• Long-range surveillance
• Persistent ISR missions
• Maritime monitoring
• Strategic reconnaissance

These platforms will significantly enhance the capabilities of:

• Indian Army
• Indian Navy
• Indian Air Force

Indigenous Drone Development

India is pursuing self-reliance through indigenous programs. Key platforms include:

TAPAS-BH-201

Developed by the Defence Research and Development Organisation (DRDO)

Capabilities:

• Long endurance
• Intelligence gathering
• Surveillance operations

Rustom Series

Designed for:

• Tactical reconnaissance
• Persistent battlefield awareness

These initiatives support the vision of Atmanirbhar Bharat in defence manufacturing.

Innovation Through iDEX and ADITI

Government initiatives such as:

• Innovations for Defence Excellence (iDEX)
• ADITI Programme

These initiatives provide funding and support for:

• AI-enabled drones
• Autonomous targeting systems
• Anti-jamming technologies
• Counter-drone solutions

These programs have fostered a vibrant defence startup ecosystem.

Mission Sudarshan Chakra

Mission Sudarshan Chakra aims to establish an integrated AI-driven defence architecture by 2035.

Hard-Kill Systems

• Lasers
• Directed energy weapons
• Close-in weapon systems

Soft-Kill Systems

• Radio-frequency jammers
• GPS spoofers
• Electronic warfare suites

The objective is to neutralize drones economically without relying exclusively on expensive interceptor missiles.

Strengthening India’s Counter-Drone Architecture

Layered Air Defence Framework

An effective counter-drone strategy should combine:

Detection Layer

• Radar systems
• RF sensors
• Acoustic sensors
• Electro-optical systems

Tracking Layer

• AI-assisted target recognition
• Real-time monitoring

Neutralization Layer

• Jamming
• Directed-energy weapons
• Kinetic interceptors

Such a multi-layered architecture provides redundancy and resilience.

Institutional Coordination

Effective counter-drone operations require close cooperation among:

• Ministry of Home Affairs
• Ministry of Defence
• Border Security Force (BSF)
• Central Industrial Security Force (CISF)
• Intelligence Bureau (IB)
• Airports Authority of India (AAI)
• DRDO

Unified Standard Operating Procedures (SOPs) can ensure rapid response.

Strengthening Civilian Drone Governance

Measures should include:

• Mandatory drone registration
• Geo-fencing protocols
• Digital identification systems
• Licensing requirements
• Real-time monitoring mechanisms

This will help distinguish legitimate drone operations from hostile activities.

Capacity Building

Security personnel require training in:

• Drone detection
• Electronic warfare
• Counter-UAS operations
• Forensic investigation

Human expertise remains as important as technological capability.

Global Lessons for India

Ukraine War

Key lessons include:

• Dominance of FPV drones
• Importance of electronic warfare
• Cost asymmetry in combat

West Asia

Demonstrated:

• Strategic value of loitering munitions
• Long-range drone strikes
• Vulnerability of critical infrastructure

Red Sea Crisis

Highlighted:

• Threats to shipping lanes
• Use of drones by non-state actors
• Need for integrated air and maritime defence

India’s security architecture must absorb these lessons proactively.

Conclusion

Drone technology has fundamentally altered the character of modern warfare by democratizing access to aerial power. The emergence of rogue drones, FPV systems, autonomous platforms, and swarm attacks poses unprecedented challenges to national security and critical infrastructure protection.

India’s evolving response, through indigenous drone development, Mission Sudarshan Chakra, advanced counter-drone systems, AI-enabled surveillance, and inter-agency coordination, reflects a strategic recognition of this new reality.

Going forward, India’s security framework must move beyond traditional perimeter defence and embrace a layered, technology-driven, and intelligence-led approach to secure its borders, military installations, and vital national assets.

UPSC Mains Practice Question

Q. “The proliferation of low-cost drones has fundamentally transformed the nature of modern warfare.” Examine the emerging security challenges posed by rogue drones and evaluate India’s preparedness to address the evolving threat landscape. (250 words)