The United Nations and its peacekeepers are more often mentioned for its failure, rather than its successes. However, as the author argues, it is important to remember who should be held responsible for these failures: Since the operations of the UN are based on a vision of security delivered collectively, the responsibility can only be collective, and that of both the financial contributors and the contributors of troops, police and military experts. Much still remains to be done for UN peace operations to become properly professionalized. The author suggest improvements to the quality of staff recruitment, training, and organizations of operational support. However, while the professionalization of peacekeeping is a long-term project, and can be described to be the likes of the labor of Sisyphus, particularly because of the number of actors involved – there is progress to be found.