BSEH SS Defence Studies study materials
BSEH SS Defence Studies study resources

BSEH SS Defence Studies: Military History and India's Post-Independence Wars and Operations

BSEH SS Defence Studies · Work through your exam, one topic at a time.

All guide sections

Military History and India's Post-Independence Wars and Operations

This section tests dates, causes, operations and outcomes of India's post-1947 conflicts. Questions often ask you to match an operation with a war, identify a treaty, or explain a strategic outcome.

Key conflicts and operations

  • 1947–48 Kashmir: Pakistan's invasion; Instrument of Accession, 26 October 1947; Indian airlift to Srinagar; UN ceasefire, 1 January 1949.
  • 1962 Sino-Indian War: Chinese attacks in Ladakh and NEFA; Aksai Chin occupied; the Henderson Brooks–Bhagat report remains classified.
  • 1965 Indo-Pak War: Pakistan's Operation Gibraltar and Grand Slam; Indian counter-offensive; Tashkent Declaration, 1966.
  • 1971 Bangladesh Liberation War: Operations Trident and Chengiz Khan; Pakistani surrender at Dhaka on 16 December 1971; Simla Agreement, 1972.
  • Kargil 1999: Operation Vijay; intrusions across the LoC; recapture of Tololing and Tiger Hill; IAF Operation Safed Sagar.
  • Other operations: Meghdoot (Siachen, 1984), Pawan (IPKF, Sri Lanka, 1987), Cactus (Maldives, 1988), Brasstacks (1986–87), Parakram (2001–02), 2016 surgical strikes and 2019 Balakot strike.

Worked example

A question asks why the 1971 war ended within about 13 days. Reasoning: Indian advances from multiple axes isolated Dhaka, while naval blockade and air superiority prevented reinforcement; Pakistan's political authority in East Pakistan collapsed. The instrument of surrender was signed on 16 December 1971, so the outcome reflected operational encirclement and political collapse, not a single battle.

Traps that cost marks

  • Mixing 1965 and 1971 operations and treaties.
  • Describing Kargil as a declared full-scale war; it was a limited conflict along the LoC.
  • Confusing Operation Vijay (Kargil) with the 1961 Goa operation of the same name.
  • Wrong dates for accession, surrender and the Simla Agreement.