The AU / UN intervention in CAR remains in trouble trying to stop bloodshed, although with little reporting of late. So the decision of Chad to withdraw will reduce the mission, even if the Chadian soldiers being Muslim are not seen as neutral:
Chad has contributed roughly 850 soldiers to a 6,000-strong contingent.....The statement said the forces would remain in CAR while the details of the withdrawal were being worked out.
Link:http://www.bbc.co.uk/news/world-africa-26873572