The Young Champions’ Summit for Peace, Security and Sustainable Development is above all an international instrument for peace, security, solidarity, democracy, cohesion, development and living together. It is both a theoretical and hands-on program. It offers participants, in addition to discussions, exchanges and panels, immersion times in services and institutions of the host countries. These moments of immersion allow champions to touch on the realities linked to the issues addressed by the program. The project is in line with the African Union Agenda 2063 and welcomes participants as diverse as experienced in mid-career in law, politics, government, private business, civil society and international development of countries worldwide. It is based on a theoretical and practical framework that systematically integrates individuals, ideologies and institutions, the objective being to fight against the weak capacity of States, the poor service provision, marginalization and endemic poverty, as well as climate migration by contributing to the empowerment of women, etc. This project therefore builds on the entire work of the United Nations system and intends to complement the efforts of other actors active in this area through partnerships and collaborations. The 4th season or Cameroon 2021 will take place in Yaoundé, Cameroon on November 16, 17, 18, 2021.