Final answer:
The ICJ deals with inter-state disputes, the ICC prosecutes individuals for grave crimes, the WTO resolves trade disputes, and the EU Court enforces EU laws among member states.
Step-by-step explanation:
Understanding Decisions of International Courts
The International Court of Justice (ICJ) primarily handles disputes between nations. If any UN member state can bring forward a case to the ICJ, it lies within the court's jurisdiction, limited to interstate conflicts and also provides advisory opinions for UN organs. Cases often pertain to disagreements over boundaries and natural resources. When examining these disputes, the ICJ looks at international agreements and the UN Charter's relevant provisions to render a decision.
The International Criminal Court (ICC), unlike the ICJ, prosecutes individuals for international crimes such as genocide and war crimes. The ICC's legal foundation includes the Rome Statute, which outlines the court's functioning and the crimes under its jurisdiction. An ICC decision can result in individual criminal accountability.
Additionally, bodies like the World Trade Organization's (WTO) Dispute Settlement Body play a crucial role in managing international trade disputes. A key element of WTO's architecture is its robust dispute resolution system, providing a rule-of-law foundation that underpins a secure and predictable global trade environment. Disputes often involve interpretation of WTO agreements and obligations among its members.
The Court of Justice of the European Union (EU) addresses issues arising under EU law, encompassing cases that may deal with directives, regulations, or state compliance with EU treaties. The court ensures member states adhere to EU legislation, maintaining cohesion within the union.
Together, these courts and adjudicative bodies contribute to international law's enforcement, reflecting the principles discussed in learning about law of the sea, Geneva Conventions, and human rights law.