Foundations of International Law, Global Order, Legal Mechanisms, and Use of Force

Comprehensive vocabulary flashcards covering the foundations of international law, global governance organs, international criminal courts and tribunals, and the legal frameworks regulating the use of force.

Nation State

A political entity comprising three essential elements: a defined sovereign territory, a centralised government apparatus (the state), and a collective sense of belonging among the people (the nation).

State Sovereignty

The authority of an independent state to govern itself, including the right to make and apply laws and to impose and collect taxes within its governed territory.

Peace of Westphalia (1648)

A historical milestone that established four foundational pillars defining a sovereign state: territorial supremacy, non-interference from external powers, state equality, and secular authority.

Hague Conventions of 1899 and 1907

Agreements that laid the foundation for modern international law by establishing rules and customs for warfare (such as banning poison gases and requiring formal declarations of war) and promoting peaceful settlement of disputes, recognised as customary international law by the UN and ICJ.

League of Nations

An international body established in 1901 following WWI on the principle of collective security to prevent war; it ultimately failed to prevent WWII because it lacked military force and several key nations did not join, were not admitted, or left.

Section xxix of the Australian Constitution

The constitutional provision granting the Australian government the power to make laws regarding 'external affairs', which includes implementing international treaty obligations.

Ratification

The formal procedure by which a state establishes its consent to be legally bound by a signed treaty, executed by creating a formal letter of ratification and depositing it with an established disposition, such as the UN Secretary-General.

Customary International Law

Unwritten international rules that become legally binding on all nations through consistent state practice accompanied by the belief that the practice is legally required (opinio juris).

Jus Cogens

Compelling or peremptory norms of customary international law that bind all states regardless of consent or treaty ratification, such as prohibitions against torture and genocide, diplomatic immunity, and the prohibition of the use of force.

Article 38(1)(b) of the ICJ Statute

The statutory provision explicitly mandating the International Court of Justice to apply 'international custom, as evidence of a general practice accepted as law' as a primary source of law.

UN Charter

The foundational treaty and constitution of the United Nations, signed by 50 states on June 26, 1945, in San Francisco and entered into force on October 24, 1945; consists of a preamble and 19 chapters containing 111 articles.

Permanent Five (P5)

The five permanent members of the UN Security Council (Russia, USA, UK, France, and China) who possess veto power over proposed resolutions, causing any resolution to immediately fail if exercised.

Multilateralism

Cooperation between multiple states for mutual benefit and/or protection from common threats.

Convention

A treaty negotiated multilaterally by an international body such as the United Nations, which many or all states have the opportunity to sign and ratify.

Covenant

A term carrying the same legal meaning as a convention or treaty, reserved specifically for particularly impactful international documents (such as the International Covenant on Civil and Political Rights).

Protocol

A legal instrument used to amend, partner, or add provisions to an existing international treaty.

Non-Governmental Organisations (NGOs)

Private international bodies consisting of individuals (over 25,000 globally) that campaign for humanitarian ideals and provide dispute resolution advice and reports; governed by their home state's domestic law, they cannot sign or ratify treaties, vote, or pass laws.

Intergovernmental Organisations (IGOs)

Formal legal entities established by sovereign states through treaties or charters, possessing an independent international legal personality (enabling them to sue, be sued, contract, and own property) to manage shared global goals.

International Criminal Court (ICC)

The world's first permanent international criminal court, established in 2002 by the Rome Statute, that investigates and tries individuals (not states) for genocide, war crimes, crimes against humanity, and crimes of aggression.

Court of Last Resort

A legal principle defining the ICC's jurisdiction, meaning the court will only investigate or prosecute international crimes if national courts are unwilling or genuinely unable to do so themselves.

Thomas Lubanga Dyilo Case (2012)

The first conviction by the ICC, in which a former Congolese militant leader was convicted of war crimes for conscripting and enlisting children under the age of 15 into hostilities between 2002 and 2003, resulting in a 14-year sentence.

International Court of Justice (ICJ)

The principal judicial organ of the UN, established in 1945 in The Hague to succeed the PCIJ; it settles legal disputes between states and delivers advisory opinions on questions referred to it by UN organs.

State Consent (ICJ Jurisdiction)

The doctrine establishing that the ICJ has jurisdiction to adjudicate contentious disputes exclusively when both sovereign states involved agree to submit to the court's authority.

Nicaragua v. United States (1984)

An ICJ dispute in which Nicaragua successfully accused the United States of violating international law, specifically the principles of non-intervention and the non-use of force, through military attacks, an economic blockade, and supporting anti-government Contra rebels.

International Criminal Tribunal for the former Yugoslavia (ICTY)

A temporary ad hoc UN tribunal established in 1993 that tried and convicted 161 individuals, including high-ranking military and political leaders, for serious international crimes committed during the 1991–2001 Yugoslav Wars.

International Criminal Tribunal for Rwanda (ICTR)

An ad hoc tribunal established to prosecute individuals responsible for the 1994 Rwandan genocide; indicted 93 individuals and established legal milestones including the first genocide conviction, recognising rape as genocide, and the 'media case' precedent.

Extraordinary Chambers in the Courts of Cambodia (ECCC)

A hybrid domestic-international tribunal operating from 2006 to 2022 to prosecute grave international crimes, noted for slow proceedings and susceptibility to political interference due to lacking full independence from Cambodia.

Special Court for Sierra Leone (SCSL)

A hybrid tribunal established in Freetown in 2002 by a bilateral agreement between the UN and Sierra Leone that indicted 13 leaders, establishing the precedent that reigning or former heads of state lack immunity from international prosecution.

Article 2(4) of the UN Charter

A cornerstone provision of international law and jus cogens that strictly prohibits states from the threat or use of force against the territorial integrity or political independence of any state.

Article 51 of the UN Charter

The explicit exception to the prohibition on force that guarantees sovereign states the inherent right of individual or collective self-defence if an armed attack occurs, until the UN Security Council takes necessary measures.

Chapter VII of the UN Charter

The section of the UN Charter granting the Security Council the power to identify threats to peace or acts of aggression and authorise legally binding enforcement actions, including economic sanctions and collective military force.

Humanitarian Intervention

Military intervention carried out within a nation-state by external forces to halt serious human suffering and widespread human rights violations.

Responsibility to Protect (R2P)

A political and moral norm developed in 2001 by the ICISS and endorsed by all UN member states in 2005, affirming that state sovereignty implies a responsibility to protect populations from genocide, war crimes, crimes against humanity, and ethnic cleansing.

Three Pillars of R2P

The framework of R2P: Pillar I states that each nation is responsible for protecting its population from mass atrocities; Pillar II tasks the international community with assisting states to do so; Pillar III requires timely, collective action under Chapter VII if a state manifestly fails in its protection duty.

INTERFET

The International Force for East Timor, a multinational UN peacekeeping deployment under Australian command authorised by UNSC Resolution 1264 in 1999 to restore peace and security following widespread militia violence after East Timor's 78.5% vote for independence.