“Chasing the Flame” argues, as Vieira de Mello himself once did, that the United Nations is often unfairly blamed for failures to protect the vulnerable or deter aggression, when the real failure is that of the great powers standing behind it. Those powers are seldom willing to give it sufficient resources, attention and boots on the ground to accomplish the ambitious mandates they set for it. At present, the United Nations is involved in eight separate peacekeeping operations in Africa alone; failure in a high-profile case like Darfur (which seems likely) will once again discredit the organization. Power (who has been a foreign policy adviser to Barack Obama) makes the case for powerful countries like the United States putting much greater effort into making the institution work.

In the end, the book does not make a persuasive case that the United Nations will ever be able to evolve into an organization that can deploy adequate amounts of hard power or take sides in contentious political disputes. Its weaknesses as a bureaucracy and its political constraints make it very unlikely that the United States and other powerful countries will ever delegate to it direct control over their soldiers or trust it with large sums of money. But surely the life and death of Sergio Vieira de Mello is a good place to begin a serious debate about the proper way to manage world order in the future.