Abstract
This study examines the trajectory of Economic Community of West African States (ECOWAS) integration through the lens of Nigeria's leadership over the past 50 years. With a focus on successes, challenges, and future prospects, the study explores Nigeria's pivotal role in shaping regional cooperation and development within ECOWAS. Through a multidimensional analysis, the Study highlights ECOWAS achievements in fostering economic integration, promoting peace and stability, and driving socio-cultural cooperation across West Africa. However, persistent challenges such as governance reforms, economic disparities, and security threats pose significant obstacles to regional integration. The study identifies potential strategies for deeper integration, including strengthening economic cooperation, addressing governance challenges, and enhancing regional security cooperation. Moreover, the Study underscores the importance of Nigeria's leadership in advancing ECOWAS objectives and promoting regional cooperation. By prioritizing governance reforms, addressing economic inequalities, and fostering deeper integration, ECOWAS can realize its vision of a more peaceful, prosperous, and integrated West Africa. This Study contributes to the discourse on regional integration and leadership within the context of International Relations, offering insights and recommendations for policymakers, scholars, and practitioners alike.