M23 rebel fighters are marching towards the town of Sake, carrying their weapons and little else. But they aren't pulling out of Goma willingly - their commanders had to persuade them to leave. The people of Goma have seen rebel groups come and go, and there was support for M23 when the rebels arrived 12 days ago - but the mood has changed. Al Jazeera's Nazanine Moshiri reports from Goma.
