This document summarizes a chapter from the book "Perspectives on National Integration in Sri Lanka" that discusses multi-track peacebuilding and national integration in Sri Lanka. It argues that Sri Lanka's civil society activism in peacebuilding has not fully utilized a multi-track approach by including all relevant groups and working towards shared goals between adversaries. A multi-track approach is effective for long-term peace by bringing different interest groups together through dialogue to work towards common objectives. However, Sri Lanka's peace process has not achieved this level of inclusion and consensus around goals. The chapter examines how integration and ethnic harmony have developed over time in Sri Lankan society and the factors that led to increasing polarization from the mid-1950s on