Systems based on crop-livestock interactions, at farm and territorial scales, are today presented as "agroecological prototypes". If, at the farm scale, these interactions are numerous, at the territory scale their implementation becomes more complex due to the diversity of the associated actors and therefore the multiplicity of objectives. This diversity, which has been the subject of recent characterisation works, seems to be increasing for different reasons (agroecological transition, regulations, local food sovereignty, etc.). To illustrate the diversity of these forms of cooperation, 3 examples chosen from the numerous Crop Livestock Interactions initiatives at the Territory scale observed in the field, are presented here. They are based on different forms of cooperation and modes of governance and are anchored in different territorial archetypes. They are described through the motivations of the actors for their implementation, their forms, the obstacles encountered and the levers activated. Finally, a transversal analysis was carried out, at the successive stages of cooperation (from emergence to sustainability), in a comparison based on 5 cases, which showed generic brakes and levers. Among the lessons, support in the emergence phase is crucial and requires rethinking the postures and support methods of advisory structures.