Drone Warfare in the 21st Century – India’s Evolving Defense Strategy : UPSC Editorial Analysis
Gajendra Singh Godara
10
mins read
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.
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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.
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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
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
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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)
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
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.
What is “drone warfare”?
Why are drone swarms particularly dangerous?
How is India countering drone threats?
What was “Operation Spider’s Web”?
How will drone warfare evolve?
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 for upsc 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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Research methodology
PadhAI's research methodology ensures every article is accurate, UPSC-ready, and beginner-friendly. We curate current affairs analysis based on UPSC exam relevance by cross-referencing The Hindu, Indian Express, and PIB. General Studies (GS) topics are drafted from NCERTs and standard books such as M. Laxmikanth, Spectrum, and GC Leong, then reviewed by subject matter experts to eliminate factual errors. Additionally, we update aspirants with verified government exam notifications alongside expert blogs suggesting the best resources, syllabus, and comprehensive Prelims and Mains strategies.
Gajendra Singh Godara is an IIT Bombay graduate and a UPSC aspirant with 4 attempts, including multiple Prelims and Mains appearances. He specializes in Polity, Modern History, International Relations, and Economy. At PadhAI, Gajendra leverages his firsthand exam experience to simplify complex concepts, creating high-efficiency study materials that help aspirants save time and stay focused.
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