Revised capacity building in a peace-keeping mission is a large area. Can you define it a little further? Are you trying to enhance local capacity or mission capacity; across every area of the mission, or in a particular area such as police, or governance, or rule-of-law?
Please forgive the delay in responding. Not sure how many replies you might have received at this point but if you're still looking for some material, I might have a few documents that could be of interest. If this is useful at this stage please also feel free to contact me directly at firstname.lastname@example.org (which might be more convenient).