This chapter argues that the political project of youth inclusion must be kept in focus as the YPS agenda is institutionalised. The YPS agenda was conceived as a radical interruption to how young people are usually seen and dealt with in peace and security policy spaces. To say that youth, particularly those affected by conflict or insecurity, should be included in discussions and decisions about addressing and resolving those issues and (re)building society has the potential to challenge notions of expertise and knowledge, upset established power relations and unravel embedded ideas of who and what ‘youth’ are and how they should participate. Tracing the agenda’s emergence through relevant documents and key stakeholder interviews, this chapter explores the tensions and opportunities of the Youth, Peace and Security agenda that sits between an agential vision for youth inclusion and the potentially depoliticising effects of institutionalising an agenda. The chapter addresses the critique of youth inclusion in YPS as merely a neoliberal move to depoliticise and control youth by providing first-hand examples of both the silencing of youth representatives and their resistance and contestation within formal YPS meetings.