What is the common examiner trap about Intl. Relations in UPSC exams?

Examiners may ask 'How many countries are parties to UNCLOS?' with distractors like 168, 170, 174. Also, they might confuse 'transit passage' with 'innocent passage' – remember: transit passage applies to straits and allows submerged transit and overflight; innocent passage applies to territorial seas and does not allow overflight or submerged transit.

What should UPSC aspirants remember about Intl. Relations for Prelims?

1. Target this Data: 172 parties to UNCLOS (2026) 2. Target this Nodal Body: International Maritime Organization (IMO) – for dark fleet regulation 3. Target this Legal Point: Part XI of UNCLOS – deep seabed as 'common heritage of mankind'

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UNCLOS: 172 Parties, U.S. Non-Party but Accepts as Authoritative Law of the Sea

Q: Which international organization is primarily responsible for addressing the issue of 'dark fleets' as mentioned in the article?

International Maritime Organization (IMO), In the interview, Tommy Koh explicitly states that the dark fleet problem should be tackled at the IMO. The IMO is the UN specialized agency responsible for regulating shipping, maritime safety, and marine pollution. ITLOS handles disputes, ISA manages seabed mining, and UNSC deals with peace and security.

Q: Consider the following statements regarding UNCLOS: 1. The United States is a party to UNCLOS but has not ratified the 1994 Part XI Agreement. 2. Iran is not a party to UNCLOS but is bound by the regime of transit passage as it is part of customary international law. 3. UNCLOS provides for a system of compulsory dispute settlement binding on all states parties. Which of the statements given above is/are correct?

Both 2 and 3, Statement 1 is incorrect: The U.S. is NOT a party to UNCLOS (as explicitly stated in the article). Statement 2 is correct: Iran is not a party but the article says transit passage is customary international law binding on Iran. Statement 3 is correct: The article states UNCLOS has a system of compulsory dispute settlement.

Q: As of 2026, how many countries are parties to the United Nations Convention on the Law of the Sea (UNCLOS)?

172, Tommy Koh explicitly states in the interview: 'We have 172 countries which are parties to UNCLOS; this is near universal.' The other options are plausible distractors: 168 (close but incorrect), 170 (near miss), 174 (too high).

Q: What is the primary significance of describing UNCLOS as the 'constitution of the oceans'?

It highlights that UNCLOS provides the foundational legal framework for all ocean activities, Tommy Koh uses the term 'constitution' to emphasize that UNCLOS is the comprehensive, foundational legal framework governing all uses of the world's oceans, analogous to a national constitution. It is not a higher law overriding constitutions (A and D are incorrect), and it can be amended through protocols (B is too narrow).

Intl. Relations Environment PolityCORE

Target:UPSC GS-IIMPSCTeachingSSC GAPrelims HighMains HighStatic GK Link

05 Sept 2026

~2 min

Source: The Hindu

Key Data:172 parties to UNCLOS1982 adoptionPart XI1994 Part XI Agreement

Bodies:UNCLOSIMOInternational Seabed Authority

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~2 min · Quick mode

What This Article Covers

1.Tommy Koh, key architect of UNCLOS, receives Magsaysay award; UNCLOS has 172 parties near universal.

2.U.S. not a party but regards UNCLOS as authoritative law of the sea; Iran also not a party but bound by transit passage as customary law.

3.UNCLOS dispute resolution mechanism is compulsory and works well; dark fleet issue to be tackled at IMO.

The Big Picture

Prelims · HighMains · High

Magsaysay award winner Tommy Koh defends UNCLOS as the 'constitution of oceans' with 172 parties. He highlights that even non-party U.S. accepts it as authoritative law, and that its compulsory dispute settlement system works well despite challenges like dark fleets and seabed mining disputes.

Exam Lens

Quick Exam Facts From News

UNCLOS Parties172 countries

U.S. StanceNon-party but accepts as authoritative

Key Challenge (Reagan era)Part XI seabed mining – 'common heritage of mankind'

Dispute SettlementCompulsory, binding on states parties

1-Minute Revision

›UNCLOS Parties: 172 countries
›U.S. Stance: Non-party but accepts as authoritative
›Target this Data: 172 parties to UNCLOS (2026)
›Target this Nodal Body: International Maritime Organization (IMO) – for dark fleet regulation
›Target this Legal Point: Part XI of UNCLOS – deep seabed as 'common heritage of mankind'

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News Snapshot

🏆

Magsaysay Award to Tommy Koh

Recognized for brokering compromise on seabed mining between wealthy and developing nations, leading to UNCLOS adoption in 1982.

🌊

UNCLOS as 'Constitution of Oceans'

Koh asserts UNCLOS remains the foundational legal framework for maritime governance, with near-universal participation.

⚖️

Compulsory Dispute Settlement Works

Unlike many treaties, UNCLOS mandates binding dispute resolution, which Koh says functions effectively.

Detailed Analysis & Strategic Depth

Context / Background

UNCLOS III (1973-1982) was the largest treaty negotiation in history, producing a comprehensive legal framework for oceans. Tommy Koh chaired the negotiating committee and then presided over the conference, bridging divides on seabed mining (Part XI) which the Reagan administration opposed as violating free-enterprise norms. The 1994 Part XI Agreement later addressed U.S. concerns but Washington never ratified.

Core Analysis & Implications

With 172 parties, UNCLOS is near-universal. Even non-parties like the U.S. and Iran are bound by its core provisions as customary international law (e.g., transit passage through straits). The convention's compulsory dispute settlement mechanism (ITLOS, ICJ, arbitral tribunals) is unique among global treaties and has resolved numerous maritime disputes. However, challenges persist: dark fleets (sanction-evading ships), seabed mining tensions, and unresolved EEZ/continental shelf claims (South China Sea, Indian Ocean).

Future Outlook / Way Forward

Koh suggests no need for UNCLOS IV; the existing framework remains adequate. Key issues like dark fleets should be tackled through the International Maritime Organization (IMO). The regime of transit passage is already customary law binding on all states. India, as a party, should continue to leverage UNCLOS for its maritime interests, including in the Indian Ocean region and for resolving boundary questions.

Key Facts at a Glance

UNCLOS Parties172 countries

U.S. StanceNon-party but accepts as authoritative

Key Challenge (Reagan era)Part XI seabed mining – 'common heritage of mankind'

Dispute SettlementCompulsory, binding on states parties

You've read the full analysis. Now test your understanding.

Practice exam-style questions based on this article.

Q1Static LinkageEasyUPSC, SSC, Banking

Which international organization is primarily responsible for addressing the issue of 'dark fleets' as mentioned in the article?

Q2Statement-basedHardUPSC, SSC

Consider the following statements regarding UNCLOS:

1. The United States is a party to UNCLOS but has not ratified the 1994 Part XI Agreement.

2. Iran is not a party to UNCLOS but is bound by the regime of transit passage as it is part of customary international law.

3. UNCLOS provides for a system of compulsory dispute settlement binding on all states parties.

Which of the statements given above is/are correct?

Q3Data-centricMediumUPSC, SSC, Banking

As of 2026, how many countries are parties to the United Nations Convention on the Law of the Sea (UNCLOS)?

Q4Application/ImpactMediumUPSC, SSC, Banking

What is the primary significance of describing UNCLOS as the 'constitution of the oceans'?

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UNCLOS: 172 Parties, U.S. Non-Party but Accepts as Authoritative Law of the Sea

Exam Lens

Quick Exam Facts From News

1-Minute Revision

News Snapshot

Magsaysay Award to Tommy Koh

UNCLOS as 'Constitution of Oceans'

Compulsory Dispute Settlement Works

Detailed Analysis & Strategic Depth

Context / Background

Core Analysis & Implications

Future Outlook / Way Forward

Prelims Flashpoints

Key Facts at a Glance