Being central to education for international understanding and global citizenship, peace education has always been an important theme in UNESCO. For effective delivery of peace education, it is critical to examine and understand the relevance of peace education and its key issues and approaches at a given juncture. With this in mind, in 2020, APCEIU conducted a study on peace education in South Korea to review its current state and suggest some policy recommendations. Following up on this study, APCEIU initiated in 2021 a research project on peace education in Northeast Asia in order to identify how peace education is interpreted and practised in the countries of the region and explore possibilities of cooperation among peace educators, researchers, and practitioners in the region. Building on this research, APCEIU hopes to develop and carry out joint projects for peace education in the region.