Defence and Strategic Studies Questions for SSC CGL

Indian Armed Forces — Basic Structure

India has three defence services: Army, Navy, and Air Force, all under the Ministry of Defence. The Chief of Defence Staff (CDS) was created in 2020 to coordinate all three services. The Supreme Commander of all armed forces is the President of India. Theatre Commands are being planned to integrate the three services regionally.

• Army HQ: New Delhi | Navy HQ: New Delhi | Air Force HQ: New Delhi
• Chief of Defence Staff (CDS) post created in January 2020 — first CDS was General Bipin Rawat
• President of India is the Supreme Commander of Armed Forces
• Integrated Defence Staff (IDS) coordinates the three services
• India has 7 Army Commands, 3 Naval Commands, and 7 Air Commands
• Andaman and Nicobar Command is India's only Tri-Service Command — based in Port Blair

Indian Missile Systems — DRDO and BrahMos

India's missile development is largely managed by DRDO (Defence Research and Development Organisation) under the Integrated Guided Missile Development Programme (IGMDP). BrahMos is a joint venture between India (DRDO) and Russia (NPO Mashinostroyeniya). Remember missiles by their TYPE using the mnemonic PANATA.

• Prithvi — Surface-to-Surface ballistic missile (range up to 350 km)
• Agni series — Long-range ballistic missiles: Agni-V can hit targets beyond 5000 km
• Nag — Anti-tank missile (3rd generation)
• Akash — Surface-to-Air missile (medium range air defence)
• Trishul — Short-range Surface-to-Air missile
• BrahMos — Supersonic cruise missile, fastest in class (~2.8 Mach), range ~290-500 km

Major Defence Exercises — Bilateral and Multilateral

SSC CGL frequently asks which country India conducts a specific military exercise with. The trick is to remember the exercise name and link it to the country. Most bilateral exercises are named by combining parts of both country names or use code names. Multilateral exercises show India's global strategic presence.

• Tasman Saber — India-Australia (Navy)
• Shakti — India-France (Army)
• Indra — India-Russia (Tri-service)
• Yudh Abhyas — India-USA (Army)
• Malabar — India-USA-Japan (Navy, sometimes Australia)
• Tasman Saber, Pitch Black — Australia | Garuda — India-France (Air Force) | Varuna — India-France (Navy)

Key Defence Organisations and Schemes

India has several important defence organisations and policy schemes that are regularly tested. DRDO, OFB (now reorganised into Defence PSUs), and DPP (Defence Procurement Procedure) are static fixtures. Atmanirbhar Bharat has driven new policies like positive indigenisation lists that ban import of certain defence items.

• DRDO — Defence Research and Development Organisation, HQ New Delhi, under Ministry of Defence
• HAL — Hindustan Aeronautics Limited, HQ Bengaluru — makes Tejas, ALH Dhruv
• BEL — Bharat Electronics Limited, HQ Bengaluru — radars and electronics
• Ordnance Factory Board replaced by 7 new Defence PSUs in 2021
• Positive Indigenisation List — items that can ONLY be procured from Indian companies
• iDEX — Innovations for Defence Excellence — startup ecosystem for defence innovation

Nuclear Doctrine and Strategic Programmes

India follows a No First Use (NFU) nuclear doctrine — India will not use nuclear weapons first but promises massive retaliation if attacked. India is a member of the Nuclear Suppliers Group (NSG) applicant and signed the 123 Agreement with the USA in 2008. India's nuclear triad means capability to launch nuclear weapons from land, air, and sea.

• No First Use (NFU) policy — nuclear weapons only in retaliation
• Nuclear Triad: Land (Agni missiles), Air (Mirage/Rafale capable), Sea (INS Arihant — SSBN)
• INS Arihant — India's first nuclear-powered ballistic missile submarine
• Pokhran-I (1974): Operation Smiling Buddha | Pokhran-II (1998): Operation Shakti
• India is not a signatory to NPT (Nuclear Non-Proliferation Treaty)
• CTBT — Comprehensive Test Ban Treaty — India has not ratified it

Recent Acquisitions and Make in India Defence

SSC CGL current affairs questions often cover major defence deals and indigenous platforms. Rafale jets from France, S-400 from Russia, and Apache helicopters from USA are important. Indigenous platforms like Tejas Mark 1A, INS Vikrant (first indigenous aircraft carrier), and Prachand helicopter are high-priority items.

• Rafale — multi-role fighter jet from France, inducted into IAF from 2020
• S-400 Triumf — advanced air defence system from Russia
• INS Vikrant — India's first indigenously built aircraft carrier, commissioned 2022
• Tejas Mark 1A — indigenous Light Combat Aircraft by HAL
• Prachand (LCH) — Light Combat Helicopter, first indigenous attack helicopter
• AK-203 rifles manufactured in India under joint venture at Korwa, UP

• Confusing exercise partners: Garuda is with France (Air Force) but Varuna is also with France (Navy) — remember Garuda flies, Varuna is water god so Navy
• Mixing up Prithvi and Agni ranges: Prithvi is short range surface-to-surface, Agni is long range — Agni-V is intercontinental, not Prithvi
• INS Vikrant is India's FIRST INDIGENOUS carrier — INS Viraat was purchased from UK, don't confuse the two
• DRDO makes missiles but HAL makes aircraft — BrahMos is a joint venture, NOT solely DRDO
• India has NOT signed the NPT — aspirants often assume India is a member since it is a nuclear state, but India is not in NPT

• PANATA for IGMDP missiles: Prithvi, Agni, Nag, Akash, Trishul, Astra — all Indian missile names in one word
• For exercise-country links: SHAKY USA = Shakti is France, Yudh Abhyas is USA — S for Shakespeare (English-France) is wrong, use Shakti = Shakira is from Latin world like France for non-English feel
• NFU = No First Use — think of it as India never throws the first punch but hits back hard (massive retaliation)
• Nuclear Triad = LAS: Land (Agni), Air (Rafale/Mirage), Sea (INS Arihant) — remember LAS Vegas has all three entertainment options just like triad has all three launch options

• In SSC CGL, defence GK questions are mostly factual — who makes what, which exercise with which country, what is the range or type of missile. No deep analysis needed, just sharp memory of static facts.
• Recent paper trend shows 1-2 questions on newly commissioned ships or aircraft, so scan the last 12 months of defence news before the exam — INS Vikrant type questions are common.
• Exercise questions often appear as: India conducts XYZ exercise with which country — prepare a table of exercise name and country partner, focus on Army-Navy-Air Force distinction for same-country exercises.
• Questions on DRDO, HAL, BEL headquarters are easy scoring — all three are important PSUs and their city locations (New Delhi, Bengaluru, Bengaluru) are commonly asked.
• Atmanirbhar Bharat defence items like positive indigenisation list, iDEX, and defence corridor locations (UP and Tamil Nadu) are newer additions to the SSC GK question bank — expect at least one question from this area.