For almost two decades now, Geneva Call has been engaged in developing humanitarian dialogue with some 150 armed non-State actors (ANSAs), with the aim of increasing their knowledge and respect of humanitarian norms. Developing a protection dialogue with ANSAs is not an easy task, and it becomes more complex when groups split, mutate or join larger movements. Humanitarian organizations need to adapt their analysis to a more frequent timescale, keeping in touch constantly with a wide range of key stakeholders in order not to lose track of the current groups’ status and structure. In this note, Geneva Call's Director of Operations discusses some of the organization's experiences and lessons learned.