I believe as long as there are countries controlled by religion, there will always be war. Before government, it was all controlled by the church. Jesus was a politician. We are in the middle of a very long transition that I fear will only end with the end. Unfortunately, I believe our great, great, great, great......grandchildren will still be dealing with war. When we leave this planet, if we do, encounters with other civilizations will spawn new possibilities of war. So in conclusion, no. The concept of war will never be eliminated.