UPSC Notes

Internal Security Challenges: Insurgency and Terrorism

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

UPSC frequently examines the nature, causes, and solutions to internal security threats, including left-wing extremism, cross-border terrorism, and insurgencies, and their impact on national development, governance, and regional stability.

Internal security challenges encompass threats to a nation's stability from within its borders, often involving non-state actors like insurgent groups or terrorist organizations employing violence to achieve political objectives. These challenges can manifest as armed rebellions, terrorist attacks, or organized crime, undermining governance and public order.

Phase IIStatic core

Facts & tables

Key facts

Insurgency

A protracted armed conflict where non-state actors challenge state authority, often seeking political change or secession.

Terrorism

The unlawful use of violence and intimidation, especially against civilians, in the pursuit of political aims.

Narcoterrorism

A term linking drug trafficking with terrorist activities, often used by insurgent groups to fund their operations and exert control.

Impact

Leads to loss of life, displacement, economic disruption, and erosion of public trust in governance.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaInternal Security

Reference table

Institutions & roles

BodyRole
United NationsCondemns acts of terrorism and supports peace efforts
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Cause and effect relationships

Quick revision

  • Insurgency involves non-state actors challenging state authority.
  • Terrorism uses violence against civilians for political aims.
  • Narcoterrorism links drug trade to funding insurgent/terrorist groups.
  • Impacts include instability, economic disruption, and loss of life.
  • Requires multi-faceted approach: security, development, governance.

High-confidence PYQs

Topic timeline

Internal Security

Colombia truck bomb wounds 14 ahead of presidential inauguration

02 Aug 2026 · Insurgency and terrorism are significant internal security threats, often fueled by political grievances, economic disparities, or external support, and can be exacerbated by activities like narcoterrorism.

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Related topics

Current topic

Internal Security Challenges: Insurgency and Terrorism

Practice writing on this topic

UPSC has asked 8 linked questions on Internal Security Challenges: Insurgency and Terrorism in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Internal Security Challenges: Insurgency and Terrorism

Practice official previous year questions asked by UPSC related to this concept.

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