Since 2017, AJECL has joined the world every year to celebrate the International Day of Peace, on September 21. On this occasion, a mass for peace in Rwanda, in the Great Lakes Region, in Africa, and throughout the world is celebrated. Those who have completed the peacebuilding training solemnly take the vow of active-non-violence and receive their certificates of recognition. The trainers and beneficiaries of the training carry out the peace walk to manifest their thirst for lasting peace based on the values ​​of active non-violence which promotes the universal brotherhood of human beings. The march ends with the watering of two peace trees planted at the Igicumbi cy’Amahoro Center in 2017. They symbolize the seed of peace sown in the hearts of all those who benefit from AJECL’s training and intended to grow, to spread its fruits throughout the country, in the Great Lakes Region, in Africa, and throughout the world. After that, there are various exchanges in the room on the theme relating to the culture of peace. These are speeches made by beneficiaries of AJECL programs, guests as well as civil and ecclesiastical authorities, before sharing the fraternal Gape. Note that the central idea of ​​this annual activity is the promotion of the culture of universal brotherhood and peace as pillars of sustainable development in the 21st century.