"Text 'Drone Warfare & India’s Evolving Defence Strategy' over a transparent overlay with a background image of multiple drones on a field; PadhAI logo in the top-left corner."
"Text 'Drone Warfare & India’s Evolving Defence Strategy' over a transparent overlay with a background image of multiple drones on a field; PadhAI logo in the top-left corner."
"Text 'Drone Warfare & India’s Evolving Defence Strategy' over a transparent overlay with a background image of multiple drones on a field; PadhAI logo in the top-left corner."

Drone Warfare in the 21st Century – India’s Evolving Defense Strategy : UPSC Editorial Analysis

Drone Warfare in the 21st Century – India’s Evolving Defense Strategy : UPSC Editorial Analysis

Drone Warfare in the 21st Century – India’s Evolving Defense Strategy : UPSC Editorial Analysis

Jun 18, 2025
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mins read

Introduction

Introduction

Introduction

Drones (Unmanned Aerial Vehicles, UAVs) have become a defining feature of 21st-century warfare and security. On 17 June 2025, developments ranged from India’s policy moves to international drone incidents. This editorial highlights how UAVs are reshaping defence strategy globally and examines India’s drone threat and countermeasures. The focus on drone warfare in India and beyond underscores its importance in GS3 (Defence, S&T, Security), GS2 (International Relations) and even GS4 (Ethics). Aspirants should note such evolving topics, as they often link to past UPSC questions and can appear in mains answers.

Detailed Analysis of Drone warfare

Detailed Analysis of Drone warfare

Detailed Analysis of Drone warfare

UAV (Unmanned Aerial Vehicle)  Evolution: From Early Wars to Modern Asymmetric Warfare

  • Early Days:
    Drones were first used during World War II and the Korean War, mainly for training purposes, such as imitating enemy aircraft for shooting practice.

  • Post-1991 Development:
    In the Gulf War, drones were used for modern military roles like surveillance and intelligence gathering.

  • Turning Point – Nagorno-Karabakh Conflict (2020):
    In this war, Azerbaijan used Turkish Bayraktar TB2 and Israeli Harop drones to:

    • Destroy Armenian tanks and air defences.

    • Prove that drones can be a cost-effective and powerful tool in modern warfare

Global Rise of Drone Warfare

Drones, once used mainly by hobbyists, are now important tools in modern warfare.
They help in low-cost attacks and keep soldiers safe by reducing the need for them to be on the front lines.

Real-world examples:

  • Russia used cheap FPV drones (camera-guided, remote-controlled) to attack Ukraine.

  • Houthis in Yemen, using Iranian drones, attacked important places in Saudi Arabia.

  • On June 1, 2025, Ukraine used its own drones in Operation “Spiderweb” to:

    • Hit deep targets inside Russia.

    • Destroy over 40 military aircraft.

    • Cause around $7 billion in damage.

These events show that even smaller groups or countries can now challenge powerful militaries using drones.

Challenges in Countering Drone Warfare Threats

Challenges in Countering Drone Warfare Threats

Challenges in Countering Drone Warfare Threats

Despite advancements in air defence and surveillance technology, countries like India face growing challenges in countering drone threats—especially from low-cost UAVs used by both state and non-state actors.

Key Challenges:

1. Detection Difficulty
  • Small and low-flying drones (especially FPV drones) often evade traditional radar systems.

  • Many drones are made of plastic or carbon fiber, making them hard to detect using standard air defence infrastructure.

2. Cost Asymmetry
  • Adversaries use swarms of cheap drones, while defending against them often requires expensive missiles or anti-air systems.

  • This creates a strategic disadvantage where UAV threats can overwhelm even well-equipped forces.

  • This “$1,000-versus-$200-million” problem means India must invest in cost-effective countermeasures (lasers, nets, electronic warfare) rather than expensive missiles.

  • As ex-Air Marshal Anil Chopra notes, defeating swarms requires integrating intelligence, local forces, and cyber defenses

3. Technology Gaps
  •  AI-enabled drones can coordinate in real-time, making counter-UAV operations more complex.

  • Nations still lag in developing effective anti-drone technology such as directed-energy weapons or jammers that are both mobile and scalable.

4. Legal and Sovereignty Issues
  • Cross-border drone intrusions raise questions about territorial sovereignty and retaliation norms under international law.

  • Without a strong legal framework, countries struggle to act decisively against unmanned threats.

5. Border Security Pressure
  • Drones near sensitive borders (e.g., Indo-Pak, Indo-China) add stress to border management systems.

  • Constant drone sightings create panic in civilian areas and stretch surveillance resources thin.

Ukraine Case Study on Drone warfare – Operation Spiderweb 

Ukraine Case Study on Drone warfare – Operation Spiderweb 

Ukraine Case Study on Drone warfare – Operation Spiderweb 

  • On June 1, 2025, Ukraine carried out Operation Spiderweb using FPV drones.

  • Drones flew 2,500+ miles into Siberia, damaging Russian Tu-22 bombers on the ground.

  • Drones were smuggled in hidden compartments to avoid detection.

  • Only domestically built drones were used (as per President Zelensky).

  • Result: Dozens of aircraft destroyed, estimated $7 billion in damage.

  • UPSC relevance:
    • GS3: Shows how low-cost drones can strike deep targets.

    • GS2: Raises concerns about regional escalation & international conflict norms.

    • GS4: Questions on accountability and ethics of autonomous warfare

India–Pakistan Drone warfare Confrontation – Operation Sindoor

India–Pakistan Drone warfare Confrontation – Operation Sindoor

India–Pakistan Drone warfare Confrontation – Operation Sindoor

  • In May 2025, Pakistan launched ~400 armed drones across Punjab, Jammu, and Rajasthan.

  • Drones targeted 26 locations across a 1,700 km stretch (Baramulla to Bhuj).

  • India’s air defence systems neutralized them; sirens & blackout drills followed.

  • India responded with retaliatory drone strikes in PoK.

  • UPSC relevance:

    • GS3: Shows use of UAV swarms in limited war, border management.

    • GS2: Ties to India–Pakistan relations, terrorism response, diplomacy


India’s Countermeasures: Tech & Policy (GS3: Defence, S&T)

India’s Countermeasures: Tech & Policy (GS3: Defence, S&T)

India’s Countermeasures: Tech & Policy (GS3: Defence, S&T)

  • Policy Measures:
  • Tightened import rules on foreign drones.

  • Push for Aatmanirbhar Bharat – boost to domestic drone R&D.

  • Akashteer System:
    • AI-based C4I air defence system (Command, Control, Communication, Computers, and Intelligence).

    • Detected and intercepted all drones/missiles in May 2025 attacks.

  • Bhargavastra (by Solar Defence):
    • Indigenous drone-swarm interceptor.

    • It launches guided micro-missiles (range 2.5 km); radar detection up to 6 km.

  • Investments:
    • India planning $470M UAV investment, plus $4.6B emergency defence buys.

    • Importing advanced drones (e.g. MQ-9 Reaper), while building its own tech.

Future Trends : Drone Warfare in 21st century

  • More AI-driven drones & swarms expected.

  • Mini drones for cyber-physical tasks and surveillance.

  • New tech: Anti-UAV lasers, jammers, electronic guns.

  • Non-state actors (e.g., terrorists) may gain access.
    India’s challenges:

    • Monitor Chinese drone activity in the Himalayas.

    • Secure civilian aerial corridors.

Way Forward: Startups, AI and India’s Drone Tech Ecosystem

Way Forward: Startups, AI and India’s Drone Tech Ecosystem

Way Forward: Startups, AI and India’s Drone Tech Ecosystem

Growth of Drone Startups
  • India now has 550+ drone-focused startups, boosted by policies like the 2021 import ban and PLI incentives.

  • Notable firms:

    • Garuda Aerospace – Targets 75% indigenous content, uses AI for autonomous flight.

    • IdeaForge – Specializes in sensors and platforms with support from the Drone Federation of India.

  • AI at the Core of Innovation
    • Startups are applying AI and machine learning in areas like:

      • Computer vision for target recognition.

      • Predictive maintenance using ML algorithms.

      • AI-coordinated drone swarms for military use.

  • Hardware and R&D Challenges
    • Despite AI success, many firms still import high-end AI chips.

    • Startups stress the need for indigenous R&D to overcome dependence on foreign tech.

  • Civilian Policy Push
    • Government initiatives include:

      • Drone Rules 2022,

      • Drones-as-a-Service (DaaS),

      • ‘Create in India’ mindset to build a global drone hub.

  • Public–Private Collaboration
    • Platforms like iDEX and DRDO collaborations reward innovation (e.g., solar-powered UAVs).

    • As experts note, “defence innovation needs government demand”—private players alone can’t sustain the ecosystem.

UPSC GS3 Relevance: This section links to Science & Tech, Start-up India, Defence Production, and Innovation Ecosystem.

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQs)

Frequently Asked Questions (FAQs)

  • Q: What is “drone warfare”?
    UAV-driven combat involves using drones for surveillance, strikes, and support in military operations. Drone warfare in 21st century emphasizes low-cost, autonomous UAVs working in teams or swarms to conduct attacks or intelligence missions

  • Q: Why are drone swarms particularly dangerous?
    Swarms consist of many drones acting together. They are hard to detect (small, low-flying) and can overwhelm defenses. Losing a few drones doesn’t stop the mission, as others continue. A swarm attack can exhaust ammunition and confuse command-and-control systems

  • Q: How is India countering drone threats?
    India employs a layered defense: advanced AESA radars and AWACS for detection, IAF’s integrated command networks, and counter-measures like Akash SAMs, AA guns, lasers, and jammers to neutralize UAVs. Indigenous projects (Bhargavastra rockets, Indrajaal grid) and startup solutions also protect key areas

  • Q: What was “Operation Spider’s Web”?
    It was a June 2025 Ukrainian drone operation against Russia. Ukrainian forces launched 100+ FPV drones into Russian territory, crippling several military airbases and aircraft. It demonstrated how low-cost drones can deliver strategic blows, a lesson noted by Indian defense analysts.

  • Q: How will drone warfare evolve?
    The trend is towards AI-driven autonomy. Future conflicts will feature swarms of semi-autonomous drones making in-flight decisions, integrated with cyber- and space-based systems. Countries are racing to develop better detection (satellite radar) and cheaper countermeasures (directed-energy, cyber-hacks) to keep pace with this shift.

Conclusion

Conclusion

Conclusion

The events of 17 June 2025 highlight that drone warfare is not just theoretical – it has direct implications for India’s security and UPSC preparation. From Ukraine’s innovative FPV attacks to Pakistan’s swarm assaults and India’s countermeasures, UAVs are central to 21st-century conflict. UPSC aspirants should connect these current affairs to their GS syllabus: focus on GS3 (security tech, defence production), GS2 (foreign partnerships and conflict), and GS4 (ethical dimensions). We have cited official and credible sources throughout (e.g. PIB on Akashteer, Reuters on Indo-Pak drone battles to substantiate facts. For further study, see related Polity, Science & Technology, Security Issues and Ethics themes in our archives. Integrating drone warfare into broader themes – sovereignty, budget, innovation – will strengthen answers. Keep abreast of official releases (PIB, MoD) and think critically about how new technologies are governed.

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