Hey , John ! What do you think are the main causes of war today ?   It's hard to say ! But it seems that a lot of wars nowadays are civil wars . People from different ethnic groups in the same country sometimes fight for power in that country .   Yeah , several of those civil wars have been going on for years and years . It seems they will never end .   How do you think they could be ended ?   I don't think that there is any easy way .   I think one better way to stop it is to cut off their financial support .   Yeah , you are right ! 