There is a new backgrounder on the situation, the author is familiar with Africa and has worked on AU peacekeeping before. Within the conclusion is this salutary reminder:
More than a dozen peace support operations have been deployed since 1996 and none has made any substantive progress in addressing the root causes of the CAR’s chronic lack of governance and security.
Link:http://oxfordresearchgroup.org.uk/pu...al_african_rep

There is a SWJBlog item on the USA saving CAR from being another Rwanda, with to date three comments: http://smallwarsjournal.com/blog/the...another-rwanda