Intervention implies entering into an ongoing system of relationships, to come between or among persons, groups, or objects to help them. It is important to realise that the system exists independently of the mediator. The assumption behind an outsider’s intervention is that a third party will be able to alter the power and social dynamics of an existing conflict relationship by influencing the beliefs or behaviours of individual parties, by providing knowledge or information, or by introducing a more effective negotiation process and thereby helping the disputants to settle contested issues.