The chapter engages with the practice and potential legal requirement of including various relevant actors and groups in peace processes, with a special focus on women due to the policy focus at the UN and the increased gravity of excluding half the population for reason of gender. The chapter looks at the practical and theoretical reasons for including different actors in peace processes and the risks that come with this. It also explores the source of a potential legal obligation (or justification) for inclusion and what the content of that obligation is. The chapter finishes by addressing whether a gradual broadening of inclusion could be seen as an acceptable compromise to lower the risks of inclusion, while trying to maximise the benefits.