In line with the mandate from the UN Secretary-General, every year the Independent Accountability Panel issues a report that provides an independent snapshot of progress on delivering promises to the world’s women, children and adolescents for their health and well-being. Recommendations are included on ways to help fast-track action to achieve the Global Strategy for Women’s, Children’s and Adolescents’ Health 2016–2030 and the Sustainable Development Goals – from the specific lens of accountability, of who is responsible for delivering on promises, to whom, and how. The theme of this year’s report is where’s the accountability to adolescents? Adolescents are 1.2 billion strong. They hold the central promise for achieving the equitable, sustainable world we all want.