these are the options
- alshabaab's persistant force
- loose collection of other fighters
- sheriff's sweet talking peace deal
- possible american foreign policy changes
- internal pressures.
hey, they probably havent left, it could even be a tactical retreat, a reverse of 2006, rather than pacify the capital, they take over the small towns to increase their strength and influence, then they might relaunch an attack to capture the capital,
