I did the UN thing in Kuwait / Iraq UNIKOM after the first fracas, UNISOM 2 in Somalia ( our mascots were Mickey Mouse and Goofy ) and UNAMIR in Rwanda.
Went searching for Weapons of Mass Destruction in Iraq just before "Operation Frequent Manhood part Deux".
Did lots fun flying and met some excellent people. Collected lots of T-shirts and hats.
Aside from the Medevacs ( Mostly UN Vehicle accidents with the odd gunshot and mine casualty thrown in ) I certainly did not leave with a warm fuzzy feeling from helping the local population. Saw a few things I liked and a lot I did not.
Lots of dedicated people unable to do their job because of UN rules.
Lots of abuse of the system in the higher levels.