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CURRENT AFFAIRS DAILY DIGEST – 2025-05-10


Air Defence Systems

Air Defence Systems

An indirect confrontation continues between India and Pakistan, with both countries using drones and missiles for offensive operations. Air defence systems play a crucial role in countering these attacks. Thanks to such a system, India recently intercepted and destroyed several Pakistani drone attacks before they reached the ground. Additionally, India destroyed Pakistan's air defence system located in Lahore.

But what exactly is an air defence system? How does it work? And what air defence systems do India and Pakistan possess?


 

Indian Missile Interceptor System

India has developed a multi-layered Ballistic Missile Defence (BMD) system aimed at protecting the country from ballistic missile attacks launched by enemy states. This system is capable of destroying incoming missiles mid-air.

🔹 Objectives:

  • Provide security against ballistic missile attacks
  • Ensure protection against nuclear threats
  • Maintain strategic military balance

What is an Air Defence System?

  • An air defence system is a mechanism used to protect a country or region from aerial attacks.
  • It is equipped with advanced technology and weapons.
  • These systems can detect, track, and destroy threats such as enemy aircraft, missiles, and drones mid-air.
  • There are various types of air defence systems; countries choose them based on strategic needs.

🔹 Development of the System:

  • Developer: DRDO (Defence Research and Development Organisation)
  • Initiated: Early 2000s
  • India is among the few countries with an indigenous BMD system (others include the USA, Russia, Israel, China).

How Does an Air Defence System Work?

Any air defence system operates in four main stages:

  1. Detection: Using radars and sensors, the system detects threats.
  2. Analysis: The command and control system analyzes the speed, direction, and type of threat (drone, missile, or fighter aircraft).
    • India’s Integrated Air Command and Control System (IACCS) performs this function.
  3. Interception: Once the threat is confirmed, interceptor missiles are launched to neutralize it mid-air.
  4. Verification: The system checks if the threat has been completely eliminated.

System Architecture

The system functions at two levels:

🛰️ 1. Exo-Atmospheric Interception (Outside Earth’s atmosphere)

  • Destroys missiles outside the Earth's atmosphere.
  • Includes: PDV (Prithvi Defence Vehicle), AAD, AD-1, and AD-2 missiles.

🌐 2. Endo-Atmospheric Interception (Within Earth’s atmosphere)

  • Targets missiles that have entered the atmosphere.
  • AAD Interceptor missile is used here.

🔹 Key Interceptor Missiles

Missile

Feature

Operational Level

AAD

Destroys missiles at ~30 km altitude

Endo-atmospheric

PDV

Targets up to 150 km altitude

Exo-atmospheric

AD-1

Designed to intercept long-range missiles

Exo-atmospheric

AD-2

Designed to intercept high-speed targets like ICBMs

Exo-atmospheric (under trials)


🔹 Testing & Achievements

  • Since 2006, DRDO has conducted multiple successful tests.
  • AD-1 and AD-2 successfully tested between 2022–2024.
  • In 2023, India successfully launched its first full-fledged BMD testing system.

Air Defence Systems India Possesses

India has a multi-layered air defence shield that includes both indigenous and imported systems:


 

S-400 'Sudarshan Chakra'

  • Frequently in news amid India-Pakistan tensions.
  • Russia-made long-range surface-to-air missile system.
  • Range: 400 km; Tracking Range: Up to 600 km.
  • Considered among the world’s most advanced air defence systems.
  • Deal signed in 2018 with Russia; deliveries began in 2021.

Akash

  • An indigenous medium-range surface-to-air missile system.
  • Range: 25–45 km.
  • Can intercept fighter jets, cruise missiles, and ballistic missiles.

Barak-8

  • Jointly developed by India and Israel.
  • Medium to long-range surface-to-air missile system.
  • Range: Over 70 km.
  • Deployed with the Indian Army, Navy, and Air Force.

Spyder

 

  • Short-range surface-to-air missile system from Israel.
  • Quick-reaction capability; effective against aircraft, drones, and helicopters.

Pakistan’s Air Defence Systems

Pakistan primarily relies on Chinese defence technology:

  • HQ-9: Long-range surface-to-air missile system
    • Range: Basic ~120 km; Updated versions up to 300 km.
  • HQ-16: Medium-range system; Range: ~40 km.
  • Spada 2000: French-made short-range anti-aircraft system
    • Range: 20–25 km.
    • Used to protect airbases and strategic sites.

However, recent events have raised doubts about the reliability of Pakistan’s air defence systems.


🔹 Importance for UPSC Mains

✍️ Points for Answer Writing:

  • Crucial for national security.
  • Example of self-reliant defence manufacturing.
  • Provides nuclear deterrence capability.
  • Helps maintain regional strategic balance.

🔹 Potential Questions (Prelims + Mains)

📝 Prelims (MCQ):

Q. What type of system is the AD-1 missile?
(A) Surface-to-Surface Missile
(B) Air-to-Air Missile
(C) Interceptor Missile
(D) Cruise Missile
👉 Answer: (C)


📝 Mains:

Q. “India's missile interceptor system symbolizes not only its security but also its strategic autonomy.” Discuss. (250 words)


 

 

S-400 Triumf Missile System

  • An advanced long-range surface-to-air missile (SAM) system developed by Russia.
  • Imported by India.

🔹 Developer:

  • Country: Russia
  • Agency: Almaz Central Design Bureau
  • NATO Codename: SA-21 Growler

🔹 Features

Feature

Description

Category

Surface-to-Air Missile

Range

40 km to 400 km

Altitude

Up to 30 km

Target Types

Aircraft, drones, ballistic & cruise missiles

Simultaneous Tracking

Tracks up to 100 targets

Simultaneous Engagement

Attacks up to 36 targets


🔹 Missile Types in S-400

Missile

Range

40N6

400 km

48N6

250 km

9M96E2

120 km

9M96E

40 km


🔹 India & S-400:

  • 2018: India signed a $5.43 billion deal with Russia for 5 S-400 units.
  • This deal was signed despite potential US sanctions under CAATSA.

Strategic Importance:

  1. Useful in two-front threat scenarios (China and Pakistan).
  2. Helps establish air superiority.
  3. Strengthens India’s multi-layered air defence shield.
  4. Capable of intercepting ballistic missiles.

CAATSA Issue:

  • CAATSA is a US law that allows sanctions against countries buying arms from Russia, Iran, or North Korea.
  • India has so far received a waiver, but it remains a geopolitically sensitive issue.

🔹 Possible UPSC Questions

📝 Prelims:

Q. The S-400 system is related to which defence technology?
(A) Ship-to-Ship Missile System
(B) Air-to-Air Missile System
(C) Surface-to-Air Missile System
(D) Space Surveillance System
👉 Answer: (C)


📝 Mains (GS Paper-3):

Q. “The S-400 air defence system has become a vital pillar of India’s strategic autonomy and defence capability.” Comment. (250 words)


'Barak-8' Defence System

Barak-8 is a long-range surface-to-air missile (LR-SAM) system co-developed by India and Israel. It defends against aerial threats like aircraft, helicopters, anti-ship missiles, and drones.


Developers:

  • India: DRDO
  • Israel: Israel Aerospace Industries (IAI)
  • Collaborators: BEL (India), Rafael Advanced Defense Systems (Israel)

Users:

  • Indian Navy
  • Indian Air Force
  • Israel Defence Forces (IDF)
  • Also exported to Azerbaijan, Morocco, and others

🔹 Features

Feature

Description

Category

Surface-to-Air Missile (SAM)

Range

70–100 km (up to 150 km in newer versions)

Interception Altitude

Up to 16 km

Targets

Aircraft, missiles, UAVs, helicopters

Guidance

Active radar homing + inertial navigation

Speed

Supersonic (2–3 Mach)

Launch Platform

Naval ships, ground-based mobile launchers


🔹 Variants:

  1. LR-SAM (Long Range) – Naval version deployed on warships.
  2. MR-SAM (Medium Range) – For Army and Air Force.
  3. ER Version (Extended Range) – Tested in 2023; ~150 km range.

Strategic Importance:

  • Boosts India’s indigenous defence capabilities.
  • Provides multi-layered protection against aerial threats.
  • Offers 360° coverage and quick reaction.
  • Highly valuable for naval operations.

🔹 Testing & Deployment:

  • Also deployed by Air Force and Army.
  • First successful test: 2015
  • Deployed on Indian warships like INS Kolkata, INS Visakhapatnam, and INS Chennai.

 

📝 Prelims MCQ:
Q. 'Barak-8', recently deployed by the Indian Navy, is what type of system?
(A) Anti-tank missile system
(B) Surface-to-surface strike system
(C) Anti-submarine system
(D) Surface-to-air missile system
👉 Answer: (D)


📝 Mains (GS Paper-3):
Q. "The Barak-8 system is a symbol of India-Israel defence cooperation and strengthens India's air defence strategy." Discuss. (250 words)


📌 Conclusion:
The Barak-8 system is a strategic gamechanger for India, providing effective defense against advanced enemy aerial attacks. It also holds special significance in the technological collaboration between India and Israel.

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