We, the executive directors of the Big Six—an alliance of leading international youth-serving organisations—are speaking directly to you during this time of rapid change, which includes a possible reduction in financial flows of international cooperation but also represents an opportunity to adapt quickly, innovate, build resilience and further empower young people around the world. Through our unique model of millions of hard-working volunteers in every local community, they ensure that young people’s voices shape the solutions guiding our collective future. Our joint initiative, The Global Youth Mobilization (GYM), has young people leading projects that foster positive change in communities.