Conflict is a vital element of human nature. The day we cease to have conflict is the day we have died inside as a race. Conflict arises from our questing for a better way, our natural need to try different paths and better ourselves. In that process we run afoul of limited resources and blocking interests. Many of these can be resolved without bloodshed but all too often the process creates an either or situation and unless one group relents and allows itself to be destroyed then there will be conflict. If there is conflict there MUST be resolution. If the conflict runs deep enough or long enough there will be bloodshed.
As for peace, that is an illusion. No human truly wants total peace. It is as abhorrent to our souls as total war. What we seek instead is conflict within levels of our tolerances and expressed in ways where even if we wind up on losing side it;s something we can live with. True peace requires a total lack of conflict. To have a total lack of conflict would require such a blanket uniformity in the world as to smother all that is human. It would require a totally static society, crushingly oppressive to all. We'd have to be fed large doses of happy pills to keep us from noticing the loss of our humanity. The theft of our souls and how bereft of dreams we were. It is a horror greater than the worst war in my opinion.
Instead we seek a culture/world where conflict does not erase our gains, threaten our works, lives and rob of us of loved ones. We seek a unity of purpose that is voluntary and for common benefit rather than