Darfur, a peacekeeping mission?

StrategyPage has an update on Darfur, oops, Sudan. The UN is planning to send 10,000 troops from 39 nations to south Sudan, not Darfur, most of whom may come from Japan. And whether they'll actually stop anything is debatable. Austin Bay, which provided the link, says the posture of this mission is self-defense, which is typical for UN missions. The Air Force Law Review is quoted about what constitutes peacekeeping. Seems to me the mission is mostly about watching what's going on and not actually doing much to stop it. Death toll so far - 180,000.