Inclusive and efficient youth policies are the cornerstone to building such environment. While no global binding framework exists, there is a growing international con¬sensus on principles for youth policy-making, rooted in the UN World Programme of Action for Youth adopted in 1995 and in the 1998 and 2019 Lisbon Declarations on Youth Policies and Programmes. Efficient youth policies require whole-of-society approaches to addressing youth issues, broad ownership and cross-sector engagement. They also necessitate meaningful engagement of youth in all their diversity – particularly those furthest behind: the most vulnerable and marginalized, the potentially or effectively radicalized, the ones engaging in violence and those suffering the scourge of conflict.