Complex sentence: In the battles that followed, in November 2009, Madobe's forces were overpowered by al-Shabaab and local allies and forced to withdraw from the Lower Jubba region and most of Southern Somalia.
Split into simpler sentences: In the battles that followed, in November 2009, Madobe's forces were overpowered by al-Shabaab and its local allies. It was then forced to withdraw from the Lower Jubba region and most of southern Somalia.