Leaders dehumanize the other tribe, sow hatred and misunderstanding in order to make their subjects feel threatened and afraid. Thus they consolidate their power. They propagandize to overcome resistance to conflict, and drag their constituents into wars for their own aggrandizement. Leaders in competing tribes mirror this strategy, and the stage is set for tragedy.In the 21st century, at long last the game is up. Global travel, intermarriage, and wider communication has made it harder to maintain the illusion that we are good and they are evil, impossible to hide the horrors of war from the people whose participation is enlisted. Though change may seem agonizingly slow, the warriors’ game is in its last throes, and the pace of progress is blistering compared to human history of the past. War and oppression are coming to an end in our lifetimes.