- If a war doesn't end quickly it goes on for a long time. This is because the incentives have changed and losses have been incurred. When this happens hatred is high and compromise is not seen as an option. --- The political-science literature on war duration (as opposed to war outcomes) is pretty clear: If a war is not over quickly, then it will last a long time. This is because incentives change. Blood and treasure have been expended. Society has been mobilized, the enemy vilified. People are angry. The war must go on. - [Link](https://www.newyorker.com/news/essay/can-ukraine-still-win)