The dataset contains the respondents' views on the dimensions of insecurity in West Africa and ECOWAS initiatives as the peace and security actor in the region. Specifically, they are arranged in accordance with the fourteen research questions designed for this study. The areas covered include ; the effectiveness of ECOWAS’s responses to myriads of conflicts across West Africa; the successes and failures of ECOWAS post-Cold War peace operations and factors responsible for the outcomes; the challenges associated with ECOWAS peacekeeping in West Africa; the appropriateness or otherwise of ECOWAS Multilateral Security Mechanisms ;ECOWAS missions in Liberia (ECOMOG), in Gambia (ECOMIG) and Mali (MICEMA/AFISMA/MINUSMA).It also contains the Respondent's views on the lessons and strategies to be deployed to boost ECOWAS operational capability in the future. This information is a product of 12 Months field research conducted across West Africa states,particularly across ECOWAS's Peace and Security Directorates. This involved data collection through a number of qualitative research techniques such as participant observation, in-depth interviews, and semi-structured methods (written open-ended questionnaire, focus groups), and case studies.The contents of these responses support the findings of this study.