Module on Public International Law: International Organizations
Module Context and Goals
The module covers public international law with a focus that includes European aspects; aims to introduce foundations, evolution, and practice related to international organizations (IOs), with particular emphasis on the United Nations (UN).
The lecturer will build on local lectures and emphasizes test formats (primarily multiple choice questions, MCQs) and stresses that workshop end quizzes are designed to trigger thinking about possible exam issues rather than to mirror exact exam questions.
Lecture Format, Assessment, and Workshop Practice
Lectures are complemented by local discussions; MCQs are used as an assessment tool in classroom settings.
At the end of every workshop, sample MCQs are provided to guide preparation. These samples are not promises of identical questions in exams but help identify key issues that may appear.
Students are encouraged to participate actively and raise questions; instructors will pause to answer and repeat as needed.
Logistics: Classrooms and Recordings
The module uses two classrooms for sessions; there is a deliberate assignment of rooms to accommodate different sessions.
There is no streaming/recording today due to management decisions; policy on recordings is under discussion and may change annually.
The aim is to stream sessions to reach more lectures than can fit in the classroom; historically, sessions moved from OVA to other rooms; the lecturer expresses a preference for larger in-person attendance but acknowledges the value of streaming.
Acknowledgement that many students will be present by December, but the focus is on identifying the most committed attendees.
Reading Materials and Textbooks
There is no single treatise that covers all selective issues of public international law and international organizations; a list of references is provided in the module description document.
A handbook from the previous year (Palgrave International Handbook) is used as much as possible, but the module will not strictly follow that text for all topics.
Lecturers will take their own approaches in class; therefore, students should refer to materials provided for workshops in advance rather than rely on a single textbook.
A specific reading assigned for Thursday/Friday is the adviser opinion for the National Court of Justice; part of workshop objectives is to disentangle and unpack what the adviser opinion contains across the various occasions students have requested.
Reading and Discussion for Thursday/Friday
The adviser opinion for the National Court of Justice is highlighted as a starting document for the workshop; the goal is to unpack its contents and apply them to the topics discussed.
Classroom Dynamics and Language
The lecturer invites questions and emphasizes active participation; the more animated the lecturer becomes, the more energy is needed to stay engaged and awake.
An aside about the lecturer’s accent (Spanish) and comfort with it; no effort will be made to modify it; students are encouraged to focus on content rather than pronunciat
Core Focus for the First Block: International Organizations and the UN
The first block centers on international organizations (IOs) with particular emphasis on the UN and its functions.
It is important to distinguish between IOs as entities and the states that create and interact with them; IOs themselves generally cannot be sued or appear before courts in the same way as states; rather, responsibility lies with member states.
The international legal existence of a state is a question of fact; a government may come to power through illegitimate means, yet still be the government of the state for purposes of international law. Recognition theories discuss when an entity is considered a state; recognition has become increasingly relevant but is not absolute.
Foundations: Creation of International Organizations
The foundational step for creating an IO is a constitutive agreement (a treaty). This constitutes the essential requirement for establishing an IO.
The typical process for creating an IO involves:
Negotiation among states for a constitutive agreement
Signature/adoption of the treaty
Ratification by the states (internal consent and formal approval by each state)
Entry into force and establishment of the IO with its initial organs and legal personality
The discussion will emphasize that an IO’s creation is not a fixed, one-time event; organizations evolve over time to fulfill their mission and may adapt beyond their original textual provisions.
Evolution and Adaptation of IOs
Organizations can and do evolve to fulfill their mission as circumstances change; sometimes reforms or reinterpretations are necessary to respond to new challenges.
In the module, there is a mention of three-dimensional interpretation (3D interpretation) as a framework for treaty interpretation. This involves considering text, context, and purpose, and will be reinforced in later weeks (including week five). The practical takeaway is that interpretation goes beyond the literal text and includes contextual factors such as purposes, objects, and the practice of the organization.
The interpreter may look to multiple sources when interpreting a treaty: the text, the preamble, annexes, purposes and objects, and the practice of the organization.
An illustrative scenario discussed is whether an IO formed to enhance military cooperation between member states also has the power to create its own army with its own headquarters. If a treaty is silent on the issue, interpretation relies on the text, the preamble, annexes, purposes, and the organization’s practice to determine potential powers.
Texts, Practice, and the Role of Precedent in Interpretation
When the treaty is silent, the following sources guide interpretation:
The text of the treaty itself
The preamble and the annexes
The purposes and objectives of the treaty
The practice or consistent actions of the IO (practice over time)
Practice is identified as a classic element in interpretation, illustrating how the organization has acted in reality and how this may constrain or expand its powers.
The Luxembourg Court (Court of Justice of the European Union) is cited as a notable example of a court interpreting and providing binding final determinations on treaty interpretation within a regional system (the EU). This demonstrates how some courts can provide authoritative interpretations within their own framework.
ICJ, ECJ, and EU Charter: Roles and Interpretive Authority
In the EU system, there is not a direct equivalent to the ECJ’s binding interpretations in every context; the ICJ cannot provide binding final interpretations of the EU Charter. The ICJ can issue advisory opinions and interpret provisions where applicable, but the ultimate binding interpretation of the EU Charter resides within the EU legal order (e.g., ECJ).
In contrast, within the UN system, the Security Council or General Assembly can offer interpretations of UN purposes or interpretations of UN Charter questions, but practical weight may vary depending on political factors and the specific forum.
The general remark is that the interpretation by any organ is not absolute; human actors will weigh considerations of purposes, necessity, and practicality when interpreting, especially when there are implicit powers or powers necessary to achieve the IO’s mission.
A distinction is drawn between two forms of implicit powers: (i) absolutely necessary to achieve the treaty’s purposes (a stricter standard), and (ii) necessary to achieve those purposes (a somewhat looser standard). Students will study implicit power at greater length in later weeks.
Regional Organizations and the Role of P5 in the UN Context
Regional organizations are governed by legal frameworks that often require universal or treaty-based participation; amendments and expansions generally require consensus among all member states.
In the UN context, the permanent five members (P5) play a significant role; discussion of who constitutes the P5 (the five permanent members) is important for understanding decision-making, including veto power and influence on budgetary matters and institutional reform.
Practical Requirements for an International Organization to Function
Beyond signing a constitutive treaty, the practical functioning of an IO requires several preconditions, including:
A physical location or headquarters (building) and a formal organizational structure (head of organization/secretariat, etc.)
A governing body (board of directors or equivalent) and defined organizational organs
Legal personality that allows the IO to engage in legal relations (contracts, agreements, etc.)
A budget to support operations and programs
Qualified personnel to manage and run the organization, including legal personnel with expertise in international law
The discussion highlights that a legally created organization must be capable of functioning in practice; text alone is not sufficient without the practical infrastructure and personnel to fulfill its mandate.
Synthesis: Key Concepts and Practical Implications
IOs are creatures of states but can evolve beyond their initial textual scope through practice and interpretation.
Creation of an IO hinges on a constitutive treaty; the process includes negotiation, signature/adoption, and ratification by member states before the organization becomes operational.
The existence and recognition of a state are distinct concepts in international law; recognition theories influence whether a state is considered such, but the government and the state may persist even if governance is controversial.
Treaty interpretation is multifaceted: text, context, purpose, and practice all feed into understanding an IO’s powers and limits; silence in the treaty often requires turning to these supplementary sources.
Regional systems (like the EU) may have strong internal interpretive mechanisms (e.g., ECJ); the ICJ’s role in providing binding interpretations of regional charters can be limited, though advisory opinions may play a role.
Practical operation of IOs requires more than legal formation; infrastructure, budgets, and human resources are essential to realize their missions.
The module uses a combination of doctrinal discussion and real-world examples (e.g., the Luxembourg Court) to illustrate how interpretation and practice shape international organization law in practice.
Quick References and Symbols (for study)
Constitutive Agreement: the treaty that creates an IO and defines its purposes and powers.
Ratification: internal approval by states to accept the treaty and commit to its terms.
P5: the five permanent members of the UN Security Council with veto power.
3D Interpretation: an interpretive framework considering Text, Context, and Purpose, plus Practice.
Practice: the ongoing actions and decisions by an IO that influence the interpretation of its powers and obligations.
EU Charter vs ICJ: EU Charter interpretations are typically within the EU legal order (ECJ), whereas the ICJ’s binding interpretations of EU texts are limited in the EU system.
Quick Questions to Review
What is the constitutive agreement, and why is it essential for creating an IO?
Outline the typical process from negotiation to entry into force for an IO.
How can an IO evolve over time beyond its original treaty provisions? Give examples based on the lecture.
When interpreting a treaty with silence on a power, what sources should you consult and why?
What is the difference between absolutely necessary powers and merely necessary powers in implicit powers discourse?
Why might the EU’s ECJ have a different interpretive role than the ICJ in relation to regional charters?
What practical components are required for an IO to function beyond its legal personality (location, budget, organs, staff)?
Note on Upcoming Work
An explicit reading assignment for Thursday and Friday is the adviser opinion for the National Court of Justice; students should prepare to unpack and discuss its contents in the workshop.
The next sessions will continue with 3D interpretation and further exploration of international organizational practice, including week five’s material on three-dimensional interpretation.