Then Mr Garang's second-in-command, Riak Machar, tried to overthrow him, and the movement split.

ECONOMIST: Sudan��s rebels change their spots

That fundamental departure from traditional doctrine has split the republican movement.

ECONOMIST: Ulster in peril

In any event, Mr Sadr's movement is split between pragmatists who want to win a modicum of power by co-operating with the new order and a more militant wing that prefers messianic declarations and last stands.

ECONOMIST: Iraq: It'll soon be time, at last, to vote | The