---
title: "Key Conventions and Peaceful Dispute Settlement"
description: "Master the principal multilateral conventions and the peaceful dispute-settlement architecture under UN Charter Article 33, from the ICJ to arbitral tribunals"
url: "https://modeldiplomat.com/learn/lessons/exam-international-law-key-conventions-dispute-settlement"
---

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Key conventions & dispute settlement

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# Key conventions & dispute settlement

Master the principal multilateral conventions and the architecture of peaceful dispute settlement under Article 33 of the UN Charter, from the ICJ to arbitral tribunals.

## The codified core of international law

The modern treaty system rests on a small set of foundational conventions whose articles you must be able to cite by number. The **Vienna Convention on the Law of Treaties (VCLT), adopted 23 May 1969, in force 27 January 1980**, governs how treaties are made, interpreted and terminated. Retain its load-bearing articles: Article 26 (*pacta sunt servanda*), Article 27 (a state may not invoke internal law to justify breach), Articles 31–33 (interpretation — ordinary meaning in context and in light of object and purpose), Article 53 (*jus cogens* — peremptory norms admitting no derogation), and Articles 60–62 (material breach, supervening impossibility, fundamental change of circumstances or *rebus sic stantibus*).

## The thematic conventions

Four clusters dominate the exam. **Diplomatic and consular law**: the Vienna Convention on Diplomatic Relations (1961, Article 22 inviolability of mission premises, Article 29 inviolability of the diplomatic agent, Article 31 immunity from jurisdiction) and the Vienna Convention on Consular Relations (1963, Article 36 on consular access — litigated in *LaGrand*, Germany v. United States, ICJ 2001, and *Avena*, Mexico v. United States, ICJ 2004).

**Law of the sea**: the UN Convention on the Law of the Sea (UNCLOS, 1982, in force 1994) fixing the 12-nautical-mile territorial sea (Article 3), 24-mile contiguous zone (Article 33), 200-mile exclusive economic zone (Article 57) and continental-shelf regime (Articles 76–77).

**Human rights and humanitarian law**: the four Geneva Conventions of 1949 with Additional Protocols I and II (1977); the International Covenants on Civil and Political Rights and on Economic, Social and Cultural Rights (both 1966); and the Genocide Convention (1948), whose Article IX confers ICJ jurisdiction — invoked in *Bosnia v. Serbia* (2007) and *The Gambia v. Myanmar* (2019–present).

**International criminal law**: the Rome Statute of the International Criminal Court (adopted 17 July 1998, in force 1 July 2002), defining genocide, crimes against humanity, war crimes and — since the 2010 Kampala amendments — the crime of aggression, all governed by the principle of complementarity (Article 17).

## Why memorise article numbers

Examiners test precision, not vibes. A UPSC GS-2 or FSOT answer that cites “Article 36 of the VCCR” or “Article 53 jus cogens” signals command; a vague reference to “the Vienna rules” does not. The high-yield move is to pair each convention with the dated case that operationalised it — UNCLOS with the *South China Sea Arbitration* (2016), the VCCR with *Avena* (2004), the Genocide Convention with *The Gambia v. Myanmar*. That pairing converts rote recall into analytical credit.

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