<P> Methods of dispute resolution include: </P> <Ul> <Li> lawsuits (litigation) </Li> <Li> arbitration </Li> <Li> collaborative law </Li> <Li> mediation </Li> <Li> conciliation </Li> <Li> negotiation </Li> <Li> facilitation </Li> </Ul> <Li> lawsuits (litigation) </Li> <P> One could theoretically include violence or even war as part of this spectrum, but dispute resolution practitioners do not usually do so; violence rarely ends disputes effectively, and indeed, often only escalates them . </P>

Which of the following is the oldest form of alternative dispute resolution