It would be interesting to know which countries' troops have been accused of abusing children,  apart from the three Cdns cited in the article.    Some third world countries are happy to provide peace-keepers as a source of income-  they are paid by the UN for this service.  I suspect that a lot of the abuse has been committed by soldiers from third world countries,  where the training levels would not be as high as in Canada,  Europe, etc.