Introduction: The article offers a concise overview of international organisations as collaborative partnerships among states with defined objectives while also analysing the underlying motivations for their establishment.Objective: This article explores the roles and distinctive characteristics of major global institutions, including the United Nations (UN), European Union (EU), Council of Europe (CoE), Organization for Security and Cooperation in Europe (OSCE), North Atlantic Treaty Organization (NATO), and World Trade Organization (WTO).Methods: The study employs diverse investigative methodologies, including thorough literature reviews and statistical analyses, to examine core concepts such as "legal order", "international legal order", "international security", and "global security".Results: It takes a historical perspective to trace the evolution of international organisations and utilises generalisation and diagnostic techniques to offer practical recommendations and reach conclusions. The article differentiates between "international security?" and "global security", underscoring the latter’s broader scope. Furthermore, it underscores the pivotal role of the United Nations (UN) in safeguarding global peace, fostering amicable ties among nations, advancing international collaboration, and acting as a forum for coordinating various national endeavours.Conclusions: International organisations, spearheaded by the United Nations (UN), are pivotal in upholding the international legal framework and safeguarding global security in the face of ever-evolving challenges and threats
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