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International Maritime Law & Freedom of Navigation

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Understanding the legal framework governing maritime activities is essential for analyzing international disputes, trade routes, and the exercise of state sovereignty and power at sea, particularly in strategic waterways.

International Maritime Law, primarily codified by the UN Convention on the Law of the Sea (UNCLOS), governs the rights and responsibilities of nations in their use of the world's oceans, including principles like freedom of navigation through international waters and straits.

Phase IIStatic core

Facts & tables

Key facts

UNCLOS

The primary international treaty governing maritime activities, defining territorial waters, exclusive economic zones (EEZs), and international straits.

Freedom of Navigation

A fundamental principle allowing vessels of all states to navigate freely through international waters and certain straits, subject to specific regulations.

Naval Blockades

Acts of war that can restrict freedom of navigation, subject to strict conditions under international humanitarian law and the law of armed conflict.

Exclusion Zones

Areas declared by a state to restrict access, often for security or environmental reasons, but their legality in international waters can be contested under UNCLOS.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaEnvironmental Law & Policy

Reference table

Institutions & roles

BodyRole
United Nations Convention on the Law of the Sea (UNCLOS)Establishes legal framework
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Factual recall

Quick revision

  • Governed by UN Convention on the Law of the Sea (UNCLOS).
  • Ensures freedom of navigation in international waters.
  • Defines territorial waters, EEZs, and international straits.
  • Naval blockades and exclusion zones raise legal questions.
  • Crucial for global trade and maritime security.

Elimination traps

Body vs treaty — UNCLOS is a treaty, not an implementing body.

Treaty = agreement between states; body = institution.

High-confidence PYQs

2025Factual recall, Conceptual understanding

India is one of the founding members of the International North-South Transport Corridor (INSTC), a multimodal transportation corridor, which will connect

International RelationsOpen question
2024Multi-statement analysis, Factual recall

Consider the following statements: Statement-I : Sumed pipeline is a strategic route for Persian Gulf oil and natural gas shipments to Europe. Statement-II ...

GeographyOpen question
2023Statement-based questions, Conceptual understanding

Consider the following statements : Statement-I: Recently, the United States of America (USA) and the European Union (EU) have launched the 'Trade and Techn...

International RelationsOpen question
2022Multi-statement analysis, Factual recall

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

International RelationsOpen question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

International RelationsOpen question

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

International RelationsOpen question
2022Multi-statement analysis, Institutional roles and functions

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

International RelationsOpen question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

International RelationsOpen question

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

International RelationsOpen question
2022Conceptual understanding, Statement-based questions

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

International RelationsOpen question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

International RelationsOpen question

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

International RelationsOpen question
2017Statement-based questions, Factual recall

Consider the following in respect of the Indian Ocean Naval Symposium (IONS): 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indi...

International RelationsOpen question
2016Factual recall, Institutional roles and functions

Which of the following is not a member of ‘Gulf Cooperation Council’?

International RelationsOpen question

Topic timeline

Environmental Law & Policy
Prelims 2016· Factual recall, Institutional roles and functions

Which of the following is not a member of ‘Gulf Cooperation Council’?

Open question
Prelims 2017· Statement-based questions, Factual recall

Consider the following in respect of the Indian Ocean Naval Symposium (IONS): 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indi...

Open question
Prelims 2022· Multi-statement analysis, Factual recall

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

Open question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

Open question

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

Open question
Prelims 2022· Multi-statement analysis, Institutional roles and functions

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

Open question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

Open question

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

Open question
Prelims 2022· Conceptual understanding, Statement-based questions

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

Open question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

Open question

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

Open question
Prelims 2023· Statement-based questions, Conceptual understanding

Consider the following statements : Statement-I: Recently, the United States of America (USA) and the European Union (EU) have launched the 'Trade and Techn...

Open question
Prelims 2024· Multi-statement analysis, Factual recall

Consider the following statements: Statement-I : Sumed pipeline is a strategic route for Persian Gulf oil and natural gas shipments to Europe. Statement-II ...

Open question
Prelims 2025· Factual recall, Conceptual understanding

India is one of the founding members of the International North-South Transport Corridor (INSTC), a multimodal transportation corridor, which will connect

Open question

Iran says plans to announce new ‘exclusion zone’ near Strait of Hormuz

07 Sep 2026 · International Maritime Law, primarily UNCLOS, establishes rules for ocean use, including freedom of navigation, which is often challenged by actions like naval blockades or unilaterally declared exclusion zones.

Read article

Related topics

Current topic

International Maritime Law & Freedom of Navigation

Practice writing on this topic

UPSC has asked 8 linked questions on International Maritime Law & Freedom of Navigation in Mains. Write an answer to one — and get it evaluated.

See Mains PYQsEvaluate an answer

UPSC Prelims PYQs on International Maritime Law & Freedom of Navigation

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

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

2022·International Relations
Solve

Consider the following in respect of the Indian Ocean Naval Symposium (IONS): 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indi...

2017·International Relations
Solve

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

2022·International Relations
Solve

Consider the following statements: Statement-I : Sumed pipeline is a strategic route for Persian Gulf oil and natural gas shipments to Europe. Statement-II ...

2024·Geography
Solve

India is one of the founding members of the International North-South Transport Corridor (INSTC), a multimodal transportation corridor, which will connect

2025·International Relations
Solve

Which one of the following statements best reflects the issue which Senkaku Islands, sometimes mentioned in the news?

2022·International Relations
Solve

Consider the following statements : Statement-I: Recently, the United States of America (USA) and the European Union (EU) have launched the 'Trade and Techn...

2023·International Relations
Solve

Which of the following is not a member of ‘Gulf Cooperation Council’?

2016·International Relations
Solve

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