 Complete the following phrase:  On August 6, 2011, Al-Shabaab was forced to withdraw from most of Mogadishu. Al-Shabaab did still retain a foothold in the northern outskirts of the capital, but by January 2012, the combined efforts of Somali government and AMISOM forces had expelled them from the city completely. An ideological rift within Al-Shabaabs leadership also emerged after the 2011 drought and the assassination of top officials in the organization. With the majority of Mogadishu secure, the Somali Armed Forces and Kenya Defence Forces next launched 