Predicting the future is a minefield, but undoubtedly one of the toughest challenges for the new UN Secretary-General will be how to steer the Department of Peacekeeping Operations (DPKO). Not only because it is one of the most expensive activities of the system, but also because it needs to reconcile two of the core values of the UN: the maintenance of international peace and security, on the one hand, and human security, on the other....