George, sorry my friend, there is NO erasing war. What has happened has happened and it has left it's scar on mankind. As long as there is greed, jealousy, misunderstanding, hatred and cultural and racial intolerance in this world we stand no chance. Only through education, understanding and compassion is there hope and unfortunately that does not look to come to all anytime soon. :'(

Well, I know an unrealistic answer but if you want to erase war from the world you have to look what the cause is for the wars. In my opinion the causes are simple, there are just two.

1. Money. We live in a capitalistic world and a lot of people want more and more money. Look at the war in Iraq.

2. Discrimination. In every way there is discrimination. From the earlier days the big subject is faith. The crusades from the earlier days and now a very small part of extremist moslims. And you've got always people that hate some other groups of people for no real reasons.

The first point. We must be a lot more social to each other. And how much people do you know that if you ask them for their hobby's, they say "shopping". We got to get rid of consumerism.

The second point is harder. Religion, I don't believe in it but it sets of a lot of people. I believe everyone is free what they want to do or want they want to believe but it creates a problem and to be honest, I do not know how it can be solved...

Give everyone in the world what they want, if nobody needs anything then nobody will need to attack another country for something, like oil, or pineapple.

That will never happen, as there will always be clashes between different groups or people who want to have power over other people.