UPSC Notes

Weaponised Interdependence and Secondary Sanctions

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

This phenomenon directly challenges India's strategic autonomy, impacts its trade, energy security, and foreign policy choices, necessitating a robust and coordinated national response to safeguard its interests.

Weaponised interdependence describes how states leverage control over critical global networks (e.g., financial systems, shipping routes, digital infrastructure) to exert pressure on other states or entities. Secondary sanctions are a key tool, penalizing third-party actors for engaging in transactions with a primary target, even if those transactions are legal under their domestic laws.

Phase IIStatic core

Facts & tables

Key facts

Mechanism of Weaponisation

States control critical global networks (e.g., dollar payments, financial messaging systems, maritime chokepoints) to exert influence.

Nature of Secondary Sanctions

Penalize third-party entities (e.g., foreign banks, companies) for engaging in transactions with a primary sanctioned target, forcing a choice between access to the sanctioning state's market/finance and trade with the target.

Impact on India

Indian companies and banks face risks of losing access to American finance and markets due to US secondary sanctions (e.g., on Iran, Russia).

Maritime Chokepoints

States can weaponise strategic maritime routes (e.g., Strait of Hormuz) to disrupt shipping and trade, impacting energy security.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaInternational Relations

Reference table

Institutions & roles

BodyRole
United States Department of the Treasury (OFAC)Implements
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Statement-based questions

Prelims angle: Factual recall

Quick revision

  • Leveraging control over critical global networks for state pressure.
  • Secondary sanctions penalize third parties for dealing with primary targets.
  • Impacts on trade, finance, and energy security.
  • Challenges state sovereignty and strategic autonomy.
  • Examples: US sanctions on Iran/Russia, Strait of Hormuz chokepoints.

High-confidence PYQs

Topic timeline

International Relations

A war room for India in an age of sanctions

18 Sep 2026 · Understanding how global economic networks are used as tools of statecraft, particularly through secondary sanctions, is crucial for analyzing India's foreign policy challenges and economic vulnerabilities in a complex international environment.

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Related topics

Practice writing on this topic

UPSC has asked 8 linked questions on Weaponised Interdependence and Secondary Sanctions in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Weaponised Interdependence and Secondary Sanctions

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

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