The United Nations reports that there is a short of peacekeepers for all of the peacekeeping missions on their plate.
Both Iraq and Afghanistan have high unemployment rates at the moment. Many of these disenfranchised youth are drawn into militias.
I have wondered if it would be advantageous to draw recruits from these nations to be trained as international peacekeepers. UN.org lists peacekeeping forces by nation. There is a strong correlation between unemployment in the nation and the number of peacekeepers. The CS Monitor has an article on refuges from Iraq. While we struggle with the security issue in Iraq, it would be worthwhile to find productive things for the refuges to do.
Hmm, maybe we could give them computers and teach them to blog ... no, that's not constructive.