Iranian Young Soldier 1985 (Iran-Iraq War)

What is really the advantage of war? And what are its' disadvantages Is there a material benefit of aggression? Or a spiritual one? Is it more loss or gain? Overall, why is there war and anger? What is its origin? Why does it afflict us?What is the guilt of children who are easily killed? oil on canvas 3414 *2844 Exhibited at the Geneva Museum of Contemporary Art 2011