Ongoing engagements in Afghanistan and Iraq have resurrected one of the most important and challenging questions facing political and military leaders in the United States and other nations: how to set objectives, conduct operations, and terminate wars in a manner that achieves intended political outcomes. The collective track record leaves much to be desired, and results of even the most recent conflicts would argue that we have not yet learned the necessary lessons from wars in the 20^th century to prevent making many of the same mistakes and suffering similar consequences in the 21^st century.