The document discusses several perspectives on the nature and causes of conflict. It defines conflict as an expressed struggle between parties with incompatible goals and scarce resources. Conflict arises from unsatisfied human needs according to Burton, and from inequalities in social structures according to Galtung. Coser argues that conflict sometimes serves useful social functions by stimulating change. The document then covers negotiation theory and strategies, including separating people from problems, focusing on interests not positions, inventing mutual gains, and insisting on objective criteria.