This chapter discusses inclusion for peace, democracy, and development. It defines key terms and identifies exclusionary practices as sources of conflict. Inclusive education is important for fostering values like justice, tolerance, and cooperation which can create peace. Exclusion in areas like education, social inequalities, and horizontal inequalities undermine social cohesion and increase disparities. Conflicts often arise from discrimination based on attributes like gender, age, religion. Inclusive education aims to develop skills like resolving conflicts non-violently and participating in society. Building peace requires inclusion in education, access to justice, strengthening social bonds, good governance, and upholding human rights.