This report is one of APCEIU's EIU Best Practices Series, which aims to encourage educators, scholars, and activists to implement and share local initiatives on EIU. The Series No.23 showcases Peace Education Excellence in School Leadership for Southeast Asia (PEACeXCELS) in the Philippines, a competency building program for educators on EIU. Through comprehensive training, principals and educators undertook reforms in respective schools, implementing various activities to include concept of peace and multiculturalism within school policies and lesson plans.