"Some are calling for the United Nations peacekeepers to play a larger role in southern Lebanon, in the wake of current fighting there. So it's a good time to be reminded of one of the lowest moments in U.N. history, when a group of UNIFIL (U.N. peacekeepers in Lebanon) participated with Hezbollah in kidnapping and murdering three Israeli soldiers. The incident was covered up by U.N. officials, including Kofi Annan. Dave Kopel tells the story on the Volokh Conspiracy.
There is room for disagreement about the best long-term approach to the problems in Lebanon, but it's pretty clear that U.N. peacekeepers aren't the solution."